15311960

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1223}}^1$

素因数の和:1547

約数の個数: 32

約数和(自身を含む): 34590240

約数和(自身を除く): 19278280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1223, 1252, 1565, 2446, 2504, 3130, 4892, 6115, 6260, 9784, 12230, 12520, 24460, 48920, 382799, 765598, 1531196, 1913995, 3062392, 3827990, 7655980, 15311960]

約数ペア:

[(1, 15311960), (2, 7655980), (4, 3827990), (5, 3062392), (8, 1913995), (10, 1531196), (20, 765598), (40, 382799), (313, 48920), (626, 24460), (1223, 12520), (1252, 12230), (1565, 9784), (2446, 6260), (2504, 6115), (3130, 4892)]