85641080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{305861}}^1$

素因数の和:305879

約数の個数: 32

約数和(自身を含む): 220220640

約数和(自身を除く): 134579560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 305861, 611722, 1223444, 1529305, 2141027, 2446888, 3058610, 4282054, 6117220, 8564108, 10705135, 12234440, 17128216, 21410270, 42820540, 85641080]

約数ペア:

[(1, 85641080), (2, 42820540), (4, 21410270), (5, 17128216), (7, 12234440), (8, 10705135), (10, 8564108), (14, 6117220), (20, 4282054), (28, 3058610), (35, 2446888), (40, 2141027), (56, 1529305), (70, 1223444), (140, 611722), (280, 305861)]