40840676

素因数分解:

$2^2\times {\mathrm{89}}^2\times {\mathrm{1289}}^1$

素因数の和:1471

約数の個数: 18

約数和(自身を含む): 72339330

約数和(自身を除く): 31498654

約数列:

[1, 2, 4, 89, 178, 356, 1289, 2578, 5156, 7921, 15842, 31684, 114721, 229442, 458884, 10210169, 20420338, 40840676]

約数ペア:

[(1, 40840676), (2, 20420338), (4, 10210169), (89, 458884), (178, 229442), (356, 114721), (1289, 31684), (2578, 15842), (5156, 7921)]