418424540

素因数分解:

$2^2\times 5^1\times {\mathrm{20921227}}^1$

素因数の和:20921236

約数の個数: 12

約数和(自身を含む): 878691576

約数和(自身を除く): 460267036

約数列:

[1, 2, 4, 5, 10, 20, 20921227, 41842454, 83684908, 104606135, 209212270, 418424540]

約数ペア:

[(1, 418424540), (2, 209212270), (4, 104606135), (5, 83684908), (10, 41842454), (20, 20921227)]