31314520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{14771}}^1$

素因数の和:14835

約数の個数: 32

約数和(自身を含む): 71791920

約数和(自身を除く): 40477400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 14771, 29542, 59084, 73855, 118168, 147710, 295420, 590840, 782863, 1565726, 3131452, 3914315, 6262904, 7828630, 15657260, 31314520]

約数ペア:

[(1, 31314520), (2, 15657260), (4, 7828630), (5, 6262904), (8, 3914315), (10, 3131452), (20, 1565726), (40, 782863), (53, 590840), (106, 295420), (212, 147710), (265, 118168), (424, 73855), (530, 59084), (1060, 29542), (2120, 14771)]