161135140

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{8081}}^1$

素因数の和:9087

約数の個数: 24

約数和(自身を含む): 338765112

約数和(自身を除く): 177629972

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4985, 8081, 9970, 16162, 19940, 32324, 40405, 80810, 161620, 8056757, 16113514, 32227028, 40283785, 80567570, 161135140]

約数ペア:

[(1, 161135140), (2, 80567570), (4, 40283785), (5, 32227028), (10, 16113514), (20, 8056757), (997, 161620), (1994, 80810), (3988, 40405), (4985, 32324), (8081, 19940), (9970, 16162)]