8612920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1321}}^1$

素因数の和:1495

約数の個数: 32

約数和(自身を含む): 19512720

約数和(自身を除く): 10899800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1321, 1630, 2642, 3260, 5284, 6520, 6605, 10568, 13210, 26420, 52840, 215323, 430646, 861292, 1076615, 1722584, 2153230, 4306460, 8612920]

約数ペア:

[(1, 8612920), (2, 4306460), (4, 2153230), (5, 1722584), (8, 1076615), (10, 861292), (20, 430646), (40, 215323), (163, 52840), (326, 26420), (652, 13210), (815, 10568), (1304, 6605), (1321, 6520), (1630, 5284), (2642, 3260)]