31318360

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4987}}^1$

素因数の和:5155

約数の個数: 32

約数和(自身を含む): 70929360

約数和(自身を除く): 39611000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4987, 6280, 9974, 19948, 24935, 39896, 49870, 99740, 199480, 782959, 1565918, 3131836, 3914795, 6263672, 7829590, 15659180, 31318360]

約数ペア:

[(1, 31318360), (2, 15659180), (4, 7829590), (5, 6263672), (8, 3914795), (10, 3131836), (20, 1565918), (40, 782959), (157, 199480), (314, 99740), (628, 49870), (785, 39896), (1256, 24935), (1570, 19948), (3140, 9974), (4987, 6280)]