137978860

素因数分解:

$2^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{5641}}^1$

素因数の和:6873

約数の個数: 24

約数和(自身を含む): 290043936

約数和(自身を除く): 152065076

約数列:

[1, 2, 4, 5, 10, 20, 1223, 2446, 4892, 5641, 6115, 11282, 12230, 22564, 24460, 28205, 56410, 112820, 6898943, 13797886, 27595772, 34494715, 68989430, 137978860]

約数ペア:

[(1, 137978860), (2, 68989430), (4, 34494715), (5, 27595772), (10, 13797886), (20, 6898943), (1223, 112820), (2446, 56410), (4892, 28205), (5641, 24460), (6115, 22564), (11282, 12230)]