1621324640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{3917}}^1$

素因数の和:4144

約数の個数: 96

約数和(自身を含む): 4146811200

約数和(自身を除く): 2525486560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 199, 208, 260, 398, 416, 520, 796, 995, 1040, 1592, 1990, 2080, 2587, 3184, 3917, 3980, 5174, 6368, 7834, 7960, 10348, 12935, 15668, 15920, 19585, 20696, 25870, 31336, 31840, 39170, 41392, 50921, 51740, 62672, 78340, 82784, 101842, 103480, 125344, 156680, 203684, 206960, 254605, 313360, 407368, 413920, 509210, 626720, 779483, 814736, 1018420, 1558966, 1629472, 2036840, 3117932, 3897415, 4073680, 6235864, 7794830, 8147360, 10133279, 12471728, 15589660, 20266558, 24943456, 31179320, 40533116, 50666395, 62358640, 81066232, 101332790, 124717280, 162132464, 202665580, 324264928, 405331160, 810662320, 1621324640]

約数ペア:

[(1, 1621324640), (2, 810662320), (4, 405331160), (5, 324264928), (8, 202665580), (10, 162132464), (13, 124717280), (16, 101332790), (20, 81066232), (26, 62358640), (32, 50666395), (40, 40533116), (52, 31179320), (65, 24943456), (80, 20266558), (104, 15589660), (130, 12471728), (160, 10133279), (199, 8147360), (208, 7794830), (260, 6235864), (398, 4073680), (416, 3897415), (520, 3117932), (796, 2036840), (995, 1629472), (1040, 1558966), (1592, 1018420), (1990, 814736), (2080, 779483), (2587, 626720), (3184, 509210), (3917, 413920), (3980, 407368), (5174, 313360), (6368, 254605), (7834, 206960), (7960, 203684), (10348, 156680), (12935, 125344), (15668, 103480), (15920, 101842), (19585, 82784), (20696, 78340), (25870, 62672), (31336, 51740), (31840, 50921), (39170, 41392)]