7856920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2207}}^1$

素因数の和:2307

約数の個数: 32

約数和(自身を含む): 17884800

約数和(自身を除く): 10027880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2207, 3560, 4414, 8828, 11035, 17656, 22070, 44140, 88280, 196423, 392846, 785692, 982115, 1571384, 1964230, 3928460, 7856920]

約数ペア:

[(1, 7856920), (2, 3928460), (4, 1964230), (5, 1571384), (8, 982115), (10, 785692), (20, 392846), (40, 196423), (89, 88280), (178, 44140), (356, 22070), (445, 17656), (712, 11035), (890, 8828), (1780, 4414), (2207, 3560)]