137536280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{491201}}^1$

素因数の和:491219

約数の個数: 32

約数和(自身を含む): 353665440

約数和(自身を除く): 216129160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 491201, 982402, 1964804, 2456005, 3438407, 3929608, 4912010, 6876814, 9824020, 13753628, 17192035, 19648040, 27507256, 34384070, 68768140, 137536280]

約数ペア:

[(1, 137536280), (2, 68768140), (4, 34384070), (5, 27507256), (7, 19648040), (8, 17192035), (10, 13753628), (14, 9824020), (20, 6876814), (28, 4912010), (35, 3929608), (40, 3438407), (56, 2456005), (70, 1964804), (140, 982402), (280, 491201)]