51819640

素因数分解:

$2^3\times 5^1\times {\mathrm{1295491}}^1$

素因数の和:1295502

約数の個数: 16

約数和(自身を含む): 116594280

約数和(自身を除く): 64774640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1295491, 2590982, 5181964, 6477455, 10363928, 12954910, 25909820, 51819640]

約数ペア:

[(1, 51819640), (2, 25909820), (4, 12954910), (5, 10363928), (8, 6477455), (10, 5181964), (20, 2590982), (40, 1295491)]