12804528280

素因数分解:

$2^3\times 5^1\times {\mathrm{320113207}}^1$

素因数の和:320113218

約数の個数: 16

約数和(自身を含む): 28810188720

約数和(自身を除く): 16005660440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 320113207, 640226414, 1280452828, 1600566035, 2560905656, 3201132070, 6402264140, 12804528280]

約数ペア:

[(1, 12804528280), (2, 6402264140), (4, 3201132070), (5, 2560905656), (8, 1600566035), (10, 1280452828), (20, 640226414), (40, 320113207)]