25990180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{13397}}^1$

素因数の和:13503

約数の個数: 24

約数和(自身を含む): 55146168

約数和(自身を除く): 29155988

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 13397, 26794, 53588, 66985, 133970, 267940, 1299509, 2599018, 5198036, 6497545, 12995090, 25990180]

約数ペア:

[(1, 25990180), (2, 12995090), (4, 6497545), (5, 5198036), (10, 2599018), (20, 1299509), (97, 267940), (194, 133970), (388, 66985), (485, 53588), (970, 26794), (1940, 13397)]