20382800

素因数分解:

$2^4\times 5^2\times {\mathrm{50957}}^1$

素因数の和:50975

約数の個数: 30

約数和(自身を含む): 48970638

約数和(自身を除く): 28587838

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50957, 101914, 203828, 254785, 407656, 509570, 815312, 1019140, 1273925, 2038280, 2547850, 4076560, 5095700, 10191400, 20382800]

約数ペア:

[(1, 20382800), (2, 10191400), (4, 5095700), (5, 4076560), (8, 2547850), (10, 2038280), (16, 1273925), (20, 1019140), (25, 815312), (40, 509570), (50, 407656), (80, 254785), (100, 203828), (200, 101914), (400, 50957)]