20124850

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{9817}}^1$

素因数の和:9870

約数の個数: 24

約数和(自身を含む): 38349108

約数和(自身を除く): 18224258

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 9817, 19634, 49085, 98170, 245425, 402497, 490850, 804994, 2012485, 4024970, 10062425, 20124850]

約数ペア:

[(1, 20124850), (2, 10062425), (5, 4024970), (10, 2012485), (25, 804994), (41, 490850), (50, 402497), (82, 245425), (205, 98170), (410, 49085), (1025, 19634), (2050, 9817)]