18739640

素因数分解:

$2^3\times 5^1\times {\mathrm{468491}}^1$

素因数の和:468502

約数の個数: 16

約数和(自身を含む): 42164280

約数和(自身を除く): 23424640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 468491, 936982, 1873964, 2342455, 3747928, 4684910, 9369820, 18739640]

約数ペア:

[(1, 18739640), (2, 9369820), (4, 4684910), (5, 3747928), (8, 2342455), (10, 1873964), (20, 936982), (40, 468491)]