28181790

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:104

約数の個数: 256

約数和(自身を含む): 98058240

約数和(自身を除く): 69876450

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 27, 30, 31, 35, 37, 39, 42, 45, 54, 62, 63, 65, 70, 74, 78, 90, 91, 93, 105, 111, 117, 126, 130, 135, 155, 182, 185, 186, 189, 195, 210, 217, 222, 234, 259, 270, 273, 279, 310, 315, 333, 351, 370, 378, 390, 403, 434, 455, 465, 481, 518, 546, 555, 558, 585, 630, 651, 666, 702, 777, 806, 819, 837, 910, 930, 945, 962, 999, 1085, 1110, 1147, 1170, 1209, 1295, 1302, 1365, 1395, 1443, 1554, 1638, 1665, 1674, 1755, 1890, 1953, 1998, 2015, 2170, 2294, 2331, 2405, 2418, 2457, 2590, 2730, 2790, 2821, 2886, 3255, 3330, 3367, 3441, 3510, 3627, 3885, 3906, 4030, 4095, 4185, 4329, 4662, 4810, 4914, 4995, 5642, 5735, 5859, 6045, 6510, 6734, 6882, 6993, 7215, 7254, 7770, 8029, 8190, 8370, 8463, 8658, 9765, 9990, 10101, 10323, 10881, 11470, 11655, 11718, 12090, 12285, 12987, 13986, 14105, 14430, 14911, 16058, 16835, 16926, 17205, 18135, 19530, 20202, 20646, 21645, 21762, 23310, 24087, 24570, 25389, 25974, 28210, 29295, 29822, 30303, 30969, 33670, 34410, 34965, 36270, 40145, 42315, 43290, 44733, 48174, 50505, 50778, 51615, 54405, 58590, 60606, 61938, 64935, 69930, 72261, 74555, 76167, 80290, 84630, 89466, 90909, 101010, 103230, 104377, 108810, 120435, 126945, 129870, 134199, 144522, 149110, 151515, 152334, 154845, 181818, 208754, 216783, 223665, 240870, 253890, 268398, 303030, 309690, 313131, 361305, 380835, 402597, 433566, 447330, 454545, 521885, 626262, 670995, 722610, 761670, 805194, 909090, 939393, 1043770, 1083915, 1341990, 1565655, 1878786, 2012985, 2167830, 2818179, 3131310, 4025970, 4696965, 5636358, 9393930, 14090895, 28181790]

約数ペア:

[(1, 28181790), (2, 14090895), (3, 9393930), (5, 5636358), (6, 4696965), (7, 4025970), (9, 3131310), (10, 2818179), (13, 2167830), (14, 2012985), (15, 1878786), (18, 1565655), (21, 1341990), (26, 1083915), (27, 1043770), (30, 939393), (31, 909090), (35, 805194), (37, 761670), (39, 722610), (42, 670995), (45, 626262), (54, 521885), (62, 454545), (63, 447330), (65, 433566), (70, 402597), (74, 380835), (78, 361305), (90, 313131), (91, 309690), (93, 303030), (105, 268398), (111, 253890), (117, 240870), (126, 223665), (130, 216783), (135, 208754), (155, 181818), (182, 154845), (185, 152334), (186, 151515), (189, 149110), (195, 144522), (210, 134199), (217, 129870), (222, 126945), (234, 120435), (259, 108810), (270, 104377), (273, 103230), (279, 101010), (310, 90909), (315, 89466), (333, 84630), (351, 80290), (370, 76167), (378, 74555), (390, 72261), (403, 69930), (434, 64935), (455, 61938), (465, 60606), (481, 58590), (518, 54405), (546, 51615), (555, 50778), (558, 50505), (585, 48174), (630, 44733), (651, 43290), (666, 42315), (702, 40145), (777, 36270), (806, 34965), (819, 34410), (837, 33670), (910, 30969), (930, 30303), (945, 29822), (962, 29295), (999, 28210), (1085, 25974), (1110, 25389), (1147, 24570), (1170, 24087), (1209, 23310), (1295, 21762), (1302, 21645), (1365, 20646), (1395, 20202), (1443, 19530), (1554, 18135), (1638, 17205), (1665, 16926), (1674, 16835), (1755, 16058), (1890, 14911), (1953, 14430), (1998, 14105), (2015, 13986), (2170, 12987), (2294, 12285), (2331, 12090), (2405, 11718), (2418, 11655), (2457, 11470), (2590, 10881), (2730, 10323), (2790, 10101), (2821, 9990), (2886, 9765), (3255, 8658), (3330, 8463), (3367, 8370), (3441, 8190), (3510, 8029), (3627, 7770), (3885, 7254), (3906, 7215), (4030, 6993), (4095, 6882), (4185, 6734), (4329, 6510), (4662, 6045), (4810, 5859), (4914, 5735), (4995, 5642)]