1989101020

素因数分解:

$2^2\times 5^1\times {\mathrm{3613}}^1\times {\mathrm{27527}}^1$

素因数の和:31149

約数の個数: 24

約数和(自身を含む): 4178420064

約数和(自身を除く): 2189319044

約数列:

[1, 2, 4, 5, 10, 20, 3613, 7226, 14452, 18065, 27527, 36130, 55054, 72260, 110108, 137635, 275270, 550540, 99455051, 198910102, 397820204, 497275255, 994550510, 1989101020]

約数ペア:

[(1, 1989101020), (2, 994550510), (4, 497275255), (5, 397820204), (10, 198910102), (20, 99455051), (3613, 550540), (7226, 275270), (14452, 137635), (18065, 110108), (27527, 72260), (36130, 55054)]