406444520

素因数分解:

$2^3\times 5^1\times {\mathrm{10161113}}^1$

素因数の和:10161124

約数の個数: 16

約数和(自身を含む): 914500260

約数和(自身を除く): 508055740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10161113, 20322226, 40644452, 50805565, 81288904, 101611130, 203222260, 406444520]

約数ペア:

[(1, 406444520), (2, 203222260), (4, 101611130), (5, 81288904), (8, 50805565), (10, 40644452), (20, 20322226), (40, 10161113)]