40425680

素因数分解:

$2^4\times 5^1\times {\mathrm{505321}}^1$

素因数の和:505334

約数の個数: 20

約数和(自身を含む): 93989892

約数和(自身を除く): 53564212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 505321, 1010642, 2021284, 2526605, 4042568, 5053210, 8085136, 10106420, 20212840, 40425680]

約数ペア:

[(1, 40425680), (2, 20212840), (4, 10106420), (5, 8085136), (8, 5053210), (10, 4042568), (16, 2526605), (20, 2021284), (40, 1010642), (80, 505321)]