64451920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2137}}^1$

素因数の和:2192

約数の個数: 80

約数和(自身を含む): 167020560

約数和(自身を除く): 102568640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 754, 1040, 1160, 1508, 1885, 2137, 2320, 3016, 3770, 4274, 6032, 7540, 8548, 10685, 15080, 17096, 21370, 27781, 30160, 34192, 42740, 55562, 61973, 85480, 111124, 123946, 138905, 170960, 222248, 247892, 277810, 309865, 444496, 495784, 555620, 619730, 805649, 991568, 1111240, 1239460, 1611298, 2222480, 2478920, 3222596, 4028245, 4957840, 6445192, 8056490, 12890384, 16112980, 32225960, 64451920]

約数ペア:

[(1, 64451920), (2, 32225960), (4, 16112980), (5, 12890384), (8, 8056490), (10, 6445192), (13, 4957840), (16, 4028245), (20, 3222596), (26, 2478920), (29, 2222480), (40, 1611298), (52, 1239460), (58, 1111240), (65, 991568), (80, 805649), (104, 619730), (116, 555620), (130, 495784), (145, 444496), (208, 309865), (232, 277810), (260, 247892), (290, 222248), (377, 170960), (464, 138905), (520, 123946), (580, 111124), (754, 85480), (1040, 61973), (1160, 55562), (1508, 42740), (1885, 34192), (2137, 30160), (2320, 27781), (3016, 21370), (3770, 17096), (4274, 15080), (6032, 10685), (7540, 8548)]