31312360

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{21157}}^1$

素因数の和:21205

約数の個数: 32

約数和(自身を含む): 72360360

約数和(自身を除く): 41048000

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 21157, 42314, 84628, 105785, 169256, 211570, 423140, 782809, 846280, 1565618, 3131236, 3914045, 6262472, 7828090, 15656180, 31312360]

約数ペア:

[(1, 31312360), (2, 15656180), (4, 7828090), (5, 6262472), (8, 3914045), (10, 3131236), (20, 1565618), (37, 846280), (40, 782809), (74, 423140), (148, 211570), (185, 169256), (296, 105785), (370, 84628), (740, 42314), (1480, 21157)]