51897720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2045

約数の個数: 128

約数和(自身を含む): 183767040

約数和(自身を除く): 131869320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 1993, 2170, 2604, 3255, 3720, 3986, 4340, 5208, 5979, 6510, 7972, 8680, 9965, 11958, 13020, 13951, 15944, 19930, 23916, 26040, 27902, 29895, 39860, 41853, 47832, 55804, 59790, 61783, 69755, 79720, 83706, 111608, 119580, 123566, 139510, 167412, 185349, 209265, 239160, 247132, 279020, 308915, 334824, 370698, 418530, 432481, 494264, 558040, 617830, 741396, 837060, 864962, 926745, 1235660, 1297443, 1482792, 1674120, 1729924, 1853490, 2162405, 2471320, 2594886, 3459848, 3706980, 4324810, 5189772, 6487215, 7413960, 8649620, 10379544, 12974430, 17299240, 25948860, 51897720]

約数ペア:

[(1, 51897720), (2, 25948860), (3, 17299240), (4, 12974430), (5, 10379544), (6, 8649620), (7, 7413960), (8, 6487215), (10, 5189772), (12, 4324810), (14, 3706980), (15, 3459848), (20, 2594886), (21, 2471320), (24, 2162405), (28, 1853490), (30, 1729924), (31, 1674120), (35, 1482792), (40, 1297443), (42, 1235660), (56, 926745), (60, 864962), (62, 837060), (70, 741396), (84, 617830), (93, 558040), (105, 494264), (120, 432481), (124, 418530), (140, 370698), (155, 334824), (168, 308915), (186, 279020), (210, 247132), (217, 239160), (248, 209265), (280, 185349), (310, 167412), (372, 139510), (420, 123566), (434, 119580), (465, 111608), (620, 83706), (651, 79720), (744, 69755), (840, 61783), (868, 59790), (930, 55804), (1085, 47832), (1240, 41853), (1302, 39860), (1736, 29895), (1860, 27902), (1993, 26040), (2170, 23916), (2604, 19930), (3255, 15944), (3720, 13951), (3986, 13020), (4340, 11958), (5208, 9965), (5979, 8680), (6510, 7972)]