25657840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24671}}^1$

素因数の和:24697

約数の個数: 40

約数和(自身を含む): 64245888

約数和(自身を除く): 38588048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 24671, 49342, 98684, 123355, 197368, 246710, 320723, 394736, 493420, 641446, 986840, 1282892, 1603615, 1973680, 2565784, 3207230, 5131568, 6414460, 12828920, 25657840]

約数ペア:

[(1, 25657840), (2, 12828920), (4, 6414460), (5, 5131568), (8, 3207230), (10, 2565784), (13, 1973680), (16, 1603615), (20, 1282892), (26, 986840), (40, 641446), (52, 493420), (65, 394736), (80, 320723), (104, 246710), (130, 197368), (208, 123355), (260, 98684), (520, 49342), (1040, 24671)]