408973820

素因数分解:

$2^2\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{9551}}^1$

素因数の和:11701

約数の個数: 24

約数和(自身を含む): 859336128

約数和(自身を除く): 450362308

約数列:

[1, 2, 4, 5, 10, 20, 2141, 4282, 8564, 9551, 10705, 19102, 21410, 38204, 42820, 47755, 95510, 191020, 20448691, 40897382, 81794764, 102243455, 204486910, 408973820]

約数ペア:

[(1, 408973820), (2, 204486910), (4, 102243455), (5, 81794764), (10, 40897382), (20, 20448691), (2141, 191020), (4282, 95510), (8564, 47755), (9551, 42820), (10705, 38204), (19102, 21410)]