28900180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{14897}}^1$

素因数の和:15003

約数の個数: 24

約数和(自身を含む): 61320168

約数和(自身を除く): 32419988

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 14897, 29794, 59588, 74485, 148970, 297940, 1445009, 2890018, 5780036, 7225045, 14450090, 28900180]

約数ペア:

[(1, 28900180), (2, 14450090), (4, 7225045), (5, 5780036), (10, 2890018), (20, 1445009), (97, 297940), (194, 148970), (388, 74485), (485, 59588), (970, 29794), (1940, 14897)]