8890425680

素因数分解:

$2^4\times 5^1\times {\mathrm{111130321}}^1$

素因数の和:111130334

約数の個数: 20

約数和(自身を含む): 20670239892

約数和(自身を除く): 11779814212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 111130321, 222260642, 444521284, 555651605, 889042568, 1111303210, 1778085136, 2222606420, 4445212840, 8890425680]

約数ペア:

[(1, 8890425680), (2, 4445212840), (4, 2222606420), (5, 1778085136), (8, 1111303210), (10, 889042568), (16, 555651605), (20, 444521284), (40, 222260642), (80, 111130321)]