90429640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{322963}}^1$

素因数の和:322981

約数の個数: 32

約数和(自身を含む): 232534080

約数和(自身を除く): 142104440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 322963, 645926, 1291852, 1614815, 2260741, 2583704, 3229630, 4521482, 6459260, 9042964, 11303705, 12918520, 18085928, 22607410, 45214820, 90429640]

約数ペア:

[(1, 90429640), (2, 45214820), (4, 22607410), (5, 18085928), (7, 12918520), (8, 11303705), (10, 9042964), (14, 6459260), (20, 4521482), (28, 3229630), (35, 2583704), (40, 2260741), (56, 1614815), (70, 1291852), (140, 645926), (280, 322963)]