80275820

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{6361}}^1$

素因数の和:7001

約数の個数: 24

約数和(自身を含む): 168872928

約数和(自身を除く): 88597108

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 6310, 6361, 12620, 12722, 25444, 31805, 63610, 127220, 4013791, 8027582, 16055164, 20068955, 40137910, 80275820]

約数ペア:

[(1, 80275820), (2, 40137910), (4, 20068955), (5, 16055164), (10, 8027582), (20, 4013791), (631, 127220), (1262, 63610), (2524, 31805), (3155, 25444), (6310, 12722), (6361, 12620)]