31184920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59971}}^1$

素因数の和:59995

約数の個数: 32

約数和(自身を含む): 75564720

約数和(自身を除く): 44379800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 59971, 119942, 239884, 299855, 479768, 599710, 779623, 1199420, 1559246, 2398840, 3118492, 3898115, 6236984, 7796230, 15592460, 31184920]

約数ペア:

[(1, 31184920), (2, 15592460), (4, 7796230), (5, 6236984), (8, 3898115), (10, 3118492), (13, 2398840), (20, 1559246), (26, 1199420), (40, 779623), (52, 599710), (65, 479768), (104, 299855), (130, 239884), (260, 119942), (520, 59971)]