56915020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{269}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 122472000

約数和(自身を除く): 65556980

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 149, 269, 284, 298, 355, 538, 596, 710, 745, 1076, 1345, 1420, 1490, 2690, 2980, 5380, 10579, 19099, 21158, 38198, 40081, 42316, 52895, 76396, 80162, 95495, 105790, 160324, 190990, 200405, 211580, 381980, 400810, 801620, 2845751, 5691502, 11383004, 14228755, 28457510, 56915020]

約数ペア:

[(1, 56915020), (2, 28457510), (4, 14228755), (5, 11383004), (10, 5691502), (20, 2845751), (71, 801620), (142, 400810), (149, 381980), (269, 211580), (284, 200405), (298, 190990), (355, 160324), (538, 105790), (596, 95495), (710, 80162), (745, 76396), (1076, 52895), (1345, 42316), (1420, 40081), (1490, 38198), (2690, 21158), (2980, 19099), (5380, 10579)]