256356360

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:114

約数の個数: 384

約数和(自身を含む): 1000944000

約数和(自身を除く): 744587640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 24, 26, 27, 30, 31, 36, 38, 39, 40, 45, 52, 54, 57, 60, 62, 65, 72, 76, 78, 90, 93, 95, 104, 108, 114, 117, 120, 124, 130, 135, 152, 155, 156, 171, 180, 186, 190, 195, 216, 228, 234, 247, 248, 260, 270, 279, 285, 310, 312, 342, 351, 360, 372, 380, 390, 403, 456, 465, 468, 494, 513, 520, 540, 558, 570, 585, 589, 620, 684, 702, 741, 744, 760, 780, 806, 837, 855, 930, 936, 961, 988, 1026, 1080, 1116, 1140, 1170, 1178, 1209, 1235, 1240, 1368, 1395, 1404, 1482, 1560, 1612, 1674, 1710, 1755, 1767, 1860, 1922, 1976, 2015, 2052, 2223, 2232, 2280, 2340, 2356, 2418, 2470, 2565, 2790, 2808, 2883, 2945, 2964, 3224, 3348, 3420, 3510, 3534, 3627, 3705, 3720, 3844, 4030, 4104, 4185, 4446, 4680, 4712, 4805, 4836, 4940, 5130, 5301, 5580, 5766, 5890, 5928, 6045, 6669, 6696, 6840, 7020, 7068, 7254, 7410, 7657, 7688, 8060, 8370, 8649, 8835, 8892, 9610, 9672, 9880, 10260, 10602, 10881, 11115, 11160, 11532, 11780, 12090, 12493, 13338, 14040, 14136, 14415, 14508, 14820, 15314, 15903, 16120, 16740, 17298, 17670, 17784, 18135, 18259, 19220, 20520, 21204, 21762, 22230, 22971, 23064, 23560, 24180, 24986, 25947, 26505, 26676, 28830, 29016, 29640, 30628, 31806, 33345, 33480, 34596, 35340, 36270, 36518, 37479, 38285, 38440, 42408, 43245, 43524, 44460, 45942, 48360, 49972, 51894, 53010, 53352, 54405, 54777, 57660, 61256, 62465, 63612, 66690, 68913, 69192, 70680, 72540, 73036, 74958, 76570, 79515, 86490, 87048, 88920, 91295, 91884, 99944, 103788, 106020, 108810, 109554, 112437, 114855, 115320, 124930, 127224, 129735, 133380, 137826, 145080, 146072, 149916, 153140, 159030, 164331, 172980, 182590, 183768, 187395, 206739, 207576, 212040, 217620, 219108, 224874, 229710, 237367, 249860, 259470, 266760, 273885, 275652, 299832, 306280, 318060, 328662, 337311, 344565, 345960, 365180, 374790, 413478, 435240, 438216, 449748, 459420, 474734, 492993, 499720, 518940, 547770, 551304, 562185, 636120, 657324, 674622, 689130, 712101, 730360, 749580, 821655, 826956, 899496, 918840, 949468, 985986, 1033695, 1037880, 1095540, 1124370, 1186835, 1314648, 1349244, 1378260, 1424202, 1499160, 1643310, 1653912, 1686555, 1898936, 1971972, 2067390, 2136303, 2191080, 2248740, 2373670, 2464965, 2698488, 2756520, 2848404, 3286620, 3373110, 3560505, 3943944, 4134780, 4272606, 4497480, 4747340, 4929930, 5696808, 6408909, 6573240, 6746220, 7121010, 8269560, 8545212, 9494680, 9859860, 10681515, 12817818, 13492440, 14242020, 17090424, 19719720, 21363030, 25635636, 28484040, 32044545, 42726060, 51271272, 64089090, 85452120, 128178180, 256356360]

約数ペア:

[(1, 256356360), (2, 128178180), (3, 85452120), (4, 64089090), (5, 51271272), (6, 42726060), (8, 32044545), (9, 28484040), (10, 25635636), (12, 21363030), (13, 19719720), (15, 17090424), (18, 14242020), (19, 13492440), (20, 12817818), (24, 10681515), (26, 9859860), (27, 9494680), (30, 8545212), (31, 8269560), (36, 7121010), (38, 6746220), (39, 6573240), (40, 6408909), (45, 5696808), (52, 4929930), (54, 4747340), (57, 4497480), (60, 4272606), (62, 4134780), (65, 3943944), (72, 3560505), (76, 3373110), (78, 3286620), (90, 2848404), (93, 2756520), (95, 2698488), (104, 2464965), (108, 2373670), (114, 2248740), (117, 2191080), (120, 2136303), (124, 2067390), (130, 1971972), (135, 1898936), (152, 1686555), (155, 1653912), (156, 1643310), (171, 1499160), (180, 1424202), (186, 1378260), (190, 1349244), (195, 1314648), (216, 1186835), (228, 1124370), (234, 1095540), (247, 1037880), (248, 1033695), (260, 985986), (270, 949468), (279, 918840), (285, 899496), (310, 826956), (312, 821655), (342, 749580), (351, 730360), (360, 712101), (372, 689130), (380, 674622), (390, 657324), (403, 636120), (456, 562185), (465, 551304), (468, 547770), (494, 518940), (513, 499720), (520, 492993), (540, 474734), (558, 459420), (570, 449748), (585, 438216), (589, 435240), (620, 413478), (684, 374790), (702, 365180), (741, 345960), (744, 344565), (760, 337311), (780, 328662), (806, 318060), (837, 306280), (855, 299832), (930, 275652), (936, 273885), (961, 266760), (988, 259470), (1026, 249860), (1080, 237367), (1116, 229710), (1140, 224874), (1170, 219108), (1178, 217620), (1209, 212040), (1235, 207576), (1240, 206739), (1368, 187395), (1395, 183768), (1404, 182590), (1482, 172980), (1560, 164331), (1612, 159030), (1674, 153140), (1710, 149916), (1755, 146072), (1767, 145080), (1860, 137826), (1922, 133380), (1976, 129735), (2015, 127224), (2052, 124930), (2223, 115320), (2232, 114855), (2280, 112437), (2340, 109554), (2356, 108810), (2418, 106020), (2470, 103788), (2565, 99944), (2790, 91884), (2808, 91295), (2883, 88920), (2945, 87048), (2964, 86490), (3224, 79515), (3348, 76570), (3420, 74958), (3510, 73036), (3534, 72540), (3627, 70680), (3705, 69192), (3720, 68913), (3844, 66690), (4030, 63612), (4104, 62465), (4185, 61256), (4446, 57660), (4680, 54777), (4712, 54405), (4805, 53352), (4836, 53010), (4940, 51894), (5130, 49972), (5301, 48360), (5580, 45942), (5766, 44460), (5890, 43524), (5928, 43245), (6045, 42408), (6669, 38440), (6696, 38285), (6840, 37479), (7020, 36518), (7068, 36270), (7254, 35340), (7410, 34596), (7657, 33480), (7688, 33345), (8060, 31806), (8370, 30628), (8649, 29640), (8835, 29016), (8892, 28830), (9610, 26676), (9672, 26505), (9880, 25947), (10260, 24986), (10602, 24180), (10881, 23560), (11115, 23064), (11160, 22971), (11532, 22230), (11780, 21762), (12090, 21204), (12493, 20520), (13338, 19220), (14040, 18259), (14136, 18135), (14415, 17784), (14508, 17670), (14820, 17298), (15314, 16740), (15903, 16120)]