309611960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1105757}}^1$

素因数の和:1105775

約数の個数: 32

約数和(自身を含む): 796145760

約数和(自身を除く): 486533800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1105757, 2211514, 4423028, 5528785, 7740299, 8846056, 11057570, 15480598, 22115140, 30961196, 38701495, 44230280, 61922392, 77402990, 154805980, 309611960]

約数ペア:

[(1, 309611960), (2, 154805980), (4, 77402990), (5, 61922392), (7, 44230280), (8, 38701495), (10, 30961196), (14, 22115140), (20, 15480598), (28, 11057570), (35, 8846056), (40, 7740299), (56, 5528785), (70, 4423028), (140, 2211514), (280, 1105757)]