156940180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{80897}}^1$

素因数の和:81003

約数の個数: 24

約数和(自身を含む): 332976168

約数和(自身を除く): 176035988

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 80897, 161794, 323588, 404485, 808970, 1617940, 7847009, 15694018, 31388036, 39235045, 78470090, 156940180]

約数ペア:

[(1, 156940180), (2, 78470090), (4, 39235045), (5, 31388036), (10, 15694018), (20, 7847009), (97, 1617940), (194, 808970), (388, 404485), (485, 323588), (970, 161794), (1940, 80897)]