40285180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{154943}}^1$

素因数の和:154965

約数の個数: 24

約数和(自身を含む): 91107072

約数和(自身を除く): 50821892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 154943, 309886, 619772, 774715, 1549430, 2014259, 3098860, 4028518, 8057036, 10071295, 20142590, 40285180]

約数ペア:

[(1, 40285180), (2, 20142590), (4, 10071295), (5, 8057036), (10, 4028518), (13, 3098860), (20, 2014259), (26, 1549430), (52, 774715), (65, 619772), (130, 309886), (260, 154943)]