20584490

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{70981}}^1$

素因数の和:71017

約数の個数: 16

約数和(自身を含む): 38330280

約数和(自身を除く): 17745790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 70981, 141962, 354905, 709810, 2058449, 4116898, 10292245, 20584490]

約数ペア:

[(1, 20584490), (2, 10292245), (5, 4116898), (10, 2058449), (29, 709810), (58, 354905), (145, 141962), (290, 70981)]