31304360

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1607}}^1$

素因数の和:2105

約数の個数: 32

約数和(自身を含む): 70623360

約数和(自身を除く): 39319000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1607, 1948, 2435, 3214, 3896, 4870, 6428, 8035, 9740, 12856, 16070, 19480, 32140, 64280, 782609, 1565218, 3130436, 3913045, 6260872, 7826090, 15652180, 31304360]

約数ペア:

[(1, 31304360), (2, 15652180), (4, 7826090), (5, 6260872), (8, 3913045), (10, 3130436), (20, 1565218), (40, 782609), (487, 64280), (974, 32140), (1607, 19480), (1948, 16070), (2435, 12856), (3214, 9740), (3896, 8035), (4870, 6428)]