12985180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49943}}^1$

素因数の和:49965

約数の個数: 24

約数和(自身を含む): 29367072

約数和(自身を除く): 16381892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49943, 99886, 199772, 249715, 499430, 649259, 998860, 1298518, 2597036, 3246295, 6492590, 12985180]

約数ペア:

[(1, 12985180), (2, 6492590), (4, 3246295), (5, 2597036), (10, 1298518), (13, 998860), (20, 649259), (26, 499430), (52, 249715), (65, 199772), (130, 99886), (260, 49943)]