40891640

素因数分解:

$2^3\times 5^1\times {\mathrm{1022291}}^1$

素因数の和:1022302

約数の個数: 16

約数和(自身を含む): 92006280

約数和(自身を除く): 51114640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1022291, 2044582, 4089164, 5111455, 8178328, 10222910, 20445820, 40891640]

約数ペア:

[(1, 40891640), (2, 20445820), (4, 10222910), (5, 8178328), (8, 5111455), (10, 4089164), (20, 2044582), (40, 1022291)]