205257040

素因数分解:

$2^4\times 5^1\times {\mathrm{2565713}}^1$

素因数の和:2565726

約数の個数: 20

約数和(自身を含む): 477222804

約数和(自身を除く): 271965764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2565713, 5131426, 10262852, 12828565, 20525704, 25657130, 41051408, 51314260, 102628520, 205257040]

約数ペア:

[(1, 205257040), (2, 102628520), (4, 51314260), (5, 41051408), (8, 25657130), (10, 20525704), (16, 12828565), (20, 10262852), (40, 5131426), (80, 2565713)]