656217220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{739}}^1\times {\mathrm{1531}}^1$

素因数の和:2308

約数の個数: 48

約数和(自身を含む): 1428436800

約数和(自身を除く): 772219580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 739, 1478, 1531, 2956, 3062, 3695, 6124, 7390, 7655, 14780, 15310, 21431, 30620, 42862, 44399, 85724, 88798, 107155, 177596, 214310, 221995, 428620, 443990, 887980, 1131409, 2262818, 4525636, 5657045, 11314090, 22628180, 32810861, 65621722, 131243444, 164054305, 328108610, 656217220]

約数ペア:

[(1, 656217220), (2, 328108610), (4, 164054305), (5, 131243444), (10, 65621722), (20, 32810861), (29, 22628180), (58, 11314090), (116, 5657045), (145, 4525636), (290, 2262818), (580, 1131409), (739, 887980), (1478, 443990), (1531, 428620), (2956, 221995), (3062, 214310), (3695, 177596), (6124, 107155), (7390, 88798), (7655, 85724), (14780, 44399), (15310, 42862), (21431, 30620)]