20903110

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 17976890

約数列:

[1, 2, 5, 10, 59, 71, 118, 142, 295, 355, 499, 590, 710, 998, 2495, 4189, 4990, 8378, 20945, 29441, 35429, 41890, 58882, 70858, 147205, 177145, 294410, 354290, 2090311, 4180622, 10451555, 20903110]

約数ペア:

[(1, 20903110), (2, 10451555), (5, 4180622), (10, 2090311), (59, 354290), (71, 294410), (118, 177145), (142, 147205), (295, 70858), (355, 58882), (499, 41890), (590, 35429), (710, 29441), (998, 20945), (2495, 8378), (4189, 4990)]