138313640

素因数分解:

$2^3\times 5^1\times {\mathrm{3457841}}^1$

素因数の和:3457852

約数の個数: 16

約数和(自身を含む): 311205780

約数和(自身を除く): 172892140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3457841, 6915682, 13831364, 17289205, 27662728, 34578410, 69156820, 138313640]

約数ペア:

[(1, 138313640), (2, 69156820), (4, 34578410), (5, 27662728), (8, 17289205), (10, 13831364), (20, 6915682), (40, 3457841)]