20940830

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{39511}}^1$

素因数の和:39571

約数の個数: 16

約数和(自身を含む): 38405664

約数和(自身を除く): 17464834

約数列:

[1, 2, 5, 10, 53, 106, 265, 530, 39511, 79022, 197555, 395110, 2094083, 4188166, 10470415, 20940830]

約数ペア:

[(1, 20940830), (2, 10470415), (5, 4188166), (10, 2094083), (53, 395110), (106, 197555), (265, 79022), (530, 39511)]