204865240

素因数分解:

$2^3\times 5^1\times {\mathrm{5121631}}^1$

素因数の和:5121642

約数の個数: 16

約数和(自身を含む): 460946880

約数和(自身を除く): 256081640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5121631, 10243262, 20486524, 25608155, 40973048, 51216310, 102432620, 204865240]

約数ペア:

[(1, 204865240), (2, 102432620), (4, 51216310), (5, 40973048), (8, 25608155), (10, 20486524), (20, 10243262), (40, 5121631)]