209320180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{107897}}^1$

素因数の和:108003

約数の個数: 24

約数和(自身を含む): 444108168

約数和(自身を除く): 234787988

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 107897, 215794, 431588, 539485, 1078970, 2157940, 10466009, 20932018, 41864036, 52330045, 104660090, 209320180]

約数ペア:

[(1, 209320180), (2, 104660090), (4, 52330045), (5, 41864036), (10, 20932018), (20, 10466009), (97, 2157940), (194, 1078970), (388, 539485), (485, 431588), (970, 215794), (1940, 107897)]