248810120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{478481}}^1$

素因数の和:478505

約数の個数: 32

約数和(自身を含む): 602887320

約数和(自身を除く): 354077200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 478481, 956962, 1913924, 2392405, 3827848, 4784810, 6220253, 9569620, 12440506, 19139240, 24881012, 31101265, 49762024, 62202530, 124405060, 248810120]

約数ペア:

[(1, 248810120), (2, 124405060), (4, 62202530), (5, 49762024), (8, 31101265), (10, 24881012), (13, 19139240), (20, 12440506), (26, 9569620), (40, 6220253), (52, 4784810), (65, 3827848), (104, 2392405), (130, 1913924), (260, 956962), (520, 478481)]