56981080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109579}}^1$

素因数の和:109603

約数の個数: 32

約数和(自身を含む): 138070800

約数和(自身を除く): 81089720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 109579, 219158, 438316, 547895, 876632, 1095790, 1424527, 2191580, 2849054, 4383160, 5698108, 7122635, 11396216, 14245270, 28490540, 56981080]

約数ペア:

[(1, 56981080), (2, 28490540), (4, 14245270), (5, 11396216), (8, 7122635), (10, 5698108), (13, 4383160), (20, 2849054), (26, 2191580), (40, 1424527), (52, 1095790), (65, 876632), (104, 547895), (130, 438316), (260, 219158), (520, 109579)]