640745820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 432

約数和(自身を含む): 2407431936

約数和(自身を除く): 1766686116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 15, 18, 20, 22, 26, 30, 31, 33, 36, 39, 44, 45, 52, 55, 60, 62, 65, 66, 73, 78, 90, 93, 99, 110, 117, 121, 124, 130, 132, 143, 146, 155, 156, 165, 180, 186, 195, 198, 219, 220, 234, 242, 260, 279, 286, 292, 310, 330, 341, 363, 365, 372, 390, 396, 403, 429, 438, 465, 468, 484, 495, 558, 572, 585, 605, 620, 657, 660, 682, 715, 726, 730, 780, 803, 806, 858, 876, 930, 949, 990, 1023, 1089, 1095, 1116, 1170, 1209, 1210, 1287, 1314, 1364, 1395, 1430, 1452, 1460, 1573, 1606, 1612, 1705, 1716, 1815, 1860, 1898, 1980, 2015, 2046, 2145, 2178, 2190, 2263, 2340, 2409, 2418, 2420, 2574, 2628, 2790, 2847, 2860, 3069, 3146, 3212, 3285, 3410, 3627, 3630, 3751, 3796, 4015, 4030, 4092, 4290, 4356, 4380, 4433, 4526, 4719, 4745, 4818, 4836, 5115, 5148, 5445, 5580, 5694, 6045, 6138, 6292, 6435, 6570, 6789, 6820, 7227, 7254, 7260, 7502, 7865, 8030, 8060, 8541, 8580, 8833, 8866, 9052, 9438, 9490, 9636, 10230, 10439, 10890, 11253, 11315, 11388, 12045, 12090, 12276, 12870, 13140, 13299, 13578, 14157, 14235, 14454, 14508, 15004, 15345, 15730, 16060, 17082, 17666, 17732, 18135, 18755, 18876, 18980, 20367, 20460, 20878, 21780, 22165, 22506, 22630, 23595, 24090, 24180, 24893, 25740, 26499, 26598, 27156, 28314, 28470, 28908, 29419, 30690, 31317, 31460, 33759, 33945, 34164, 35332, 36135, 36270, 37510, 39897, 40734, 41756, 42705, 44165, 44330, 45012, 45260, 47190, 48180, 48763, 49786, 52195, 52998, 53196, 56265, 56628, 56940, 58838, 61380, 62634, 66495, 67518, 67890, 70785, 72270, 72540, 74679, 75020, 79497, 79794, 81468, 85410, 88257, 88330, 88660, 93951, 94380, 97526, 99572, 101835, 104390, 105996, 112530, 114829, 117676, 124465, 125268, 132495, 132990, 135036, 135780, 141570, 144540, 146289, 147095, 149358, 156585, 158994, 159588, 168795, 170820, 176514, 176660, 187902, 195052, 199485, 203670, 208780, 224037, 225060, 229658, 243815, 248930, 264771, 264990, 265980, 273823, 283140, 292578, 294190, 298716, 313170, 317988, 323609, 337590, 344487, 353028, 373395, 375804, 397485, 398970, 407340, 438867, 441285, 448074, 459316, 469755, 487630, 497860, 529542, 529980, 547646, 574145, 585156, 588380, 626340, 647218, 675180, 688974, 731445, 746790, 794970, 797940, 821469, 877734, 882570, 896148, 939510, 970827, 975260, 1033461, 1059084, 1095292, 1120185, 1148290, 1294436, 1323855, 1369115, 1377948, 1462890, 1493580, 1589940, 1618045, 1642938, 1722435, 1755468, 1765140, 1879020, 1941654, 2066922, 2194335, 2240370, 2296580, 2464407, 2647710, 2738230, 2912481, 2925780, 3236090, 3285876, 3444870, 3559699, 3883308, 4107345, 4133844, 4388670, 4480740, 4854135, 4928814, 5167305, 5295420, 5476460, 5824962, 6472180, 6889740, 7119398, 8214690, 8777340, 9708270, 9857628, 10334610, 10679097, 11649924, 12322035, 14238796, 14562405, 16429380, 17798495, 19416540, 20669220, 21358194, 24644070, 29124810, 32037291, 35596990, 42716388, 49288140, 53395485, 58249620, 64074582, 71193980, 106790970, 128149164, 160186455, 213581940, 320372910, 640745820]

約数ペア:

[(1, 640745820), (2, 320372910), (3, 213581940), (4, 160186455), (5, 128149164), (6, 106790970), (9, 71193980), (10, 64074582), (11, 58249620), (12, 53395485), (13, 49288140), (15, 42716388), (18, 35596990), (20, 32037291), (22, 29124810), (26, 24644070), (30, 21358194), (31, 20669220), (33, 19416540), (36, 17798495), (39, 16429380), (44, 14562405), (45, 14238796), (52, 12322035), (55, 11649924), (60, 10679097), (62, 10334610), (65, 9857628), (66, 9708270), (73, 8777340), (78, 8214690), (90, 7119398), (93, 6889740), (99, 6472180), (110, 5824962), (117, 5476460), (121, 5295420), (124, 5167305), (130, 4928814), (132, 4854135), (143, 4480740), (146, 4388670), (155, 4133844), (156, 4107345), (165, 3883308), (180, 3559699), (186, 3444870), (195, 3285876), (198, 3236090), (219, 2925780), (220, 2912481), (234, 2738230), (242, 2647710), (260, 2464407), (279, 2296580), (286, 2240370), (292, 2194335), (310, 2066922), (330, 1941654), (341, 1879020), (363, 1765140), (365, 1755468), (372, 1722435), (390, 1642938), (396, 1618045), (403, 1589940), (429, 1493580), (438, 1462890), (465, 1377948), (468, 1369115), (484, 1323855), (495, 1294436), (558, 1148290), (572, 1120185), (585, 1095292), (605, 1059084), (620, 1033461), (657, 975260), (660, 970827), (682, 939510), (715, 896148), (726, 882570), (730, 877734), (780, 821469), (803, 797940), (806, 794970), (858, 746790), (876, 731445), (930, 688974), (949, 675180), (990, 647218), (1023, 626340), (1089, 588380), (1095, 585156), (1116, 574145), (1170, 547646), (1209, 529980), (1210, 529542), (1287, 497860), (1314, 487630), (1364, 469755), (1395, 459316), (1430, 448074), (1452, 441285), (1460, 438867), (1573, 407340), (1606, 398970), (1612, 397485), (1705, 375804), (1716, 373395), (1815, 353028), (1860, 344487), (1898, 337590), (1980, 323609), (2015, 317988), (2046, 313170), (2145, 298716), (2178, 294190), (2190, 292578), (2263, 283140), (2340, 273823), (2409, 265980), (2418, 264990), (2420, 264771), (2574, 248930), (2628, 243815), (2790, 229658), (2847, 225060), (2860, 224037), (3069, 208780), (3146, 203670), (3212, 199485), (3285, 195052), (3410, 187902), (3627, 176660), (3630, 176514), (3751, 170820), (3796, 168795), (4015, 159588), (4030, 158994), (4092, 156585), (4290, 149358), (4356, 147095), (4380, 146289), (4433, 144540), (4526, 141570), (4719, 135780), (4745, 135036), (4818, 132990), (4836, 132495), (5115, 125268), (5148, 124465), (5445, 117676), (5580, 114829), (5694, 112530), (6045, 105996), (6138, 104390), (6292, 101835), (6435, 99572), (6570, 97526), (6789, 94380), (6820, 93951), (7227, 88660), (7254, 88330), (7260, 88257), (7502, 85410), (7865, 81468), (8030, 79794), (8060, 79497), (8541, 75020), (8580, 74679), (8833, 72540), (8866, 72270), (9052, 70785), (9438, 67890), (9490, 67518), (9636, 66495), (10230, 62634), (10439, 61380), (10890, 58838), (11253, 56940), (11315, 56628), (11388, 56265), (12045, 53196), (12090, 52998), (12276, 52195), (12870, 49786), (13140, 48763), (13299, 48180), (13578, 47190), (14157, 45260), (14235, 45012), (14454, 44330), (14508, 44165), (15004, 42705), (15345, 41756), (15730, 40734), (16060, 39897), (17082, 37510), (17666, 36270), (17732, 36135), (18135, 35332), (18755, 34164), (18876, 33945), (18980, 33759), (20367, 31460), (20460, 31317), (20878, 30690), (21780, 29419), (22165, 28908), (22506, 28470), (22630, 28314), (23595, 27156), (24090, 26598), (24180, 26499), (24893, 25740)]