31004080

素因数分解:

$2^4\times 5^1\times {\mathrm{387551}}^1$

素因数の和:387564

約数の個数: 20

約数和(自身を含む): 72084672

約数和(自身を除く): 41080592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 387551, 775102, 1550204, 1937755, 3100408, 3875510, 6200816, 7751020, 15502040, 31004080]

約数ペア:

[(1, 31004080), (2, 15502040), (4, 7751020), (5, 6200816), (8, 3875510), (10, 3100408), (16, 1937755), (20, 1550204), (40, 775102), (80, 387551)]