19586725

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 25264008

約数和(自身を除く): 5677283

約数列:

[1, 5, 25, 41, 97, 197, 205, 485, 985, 1025, 2425, 3977, 4925, 8077, 19109, 19885, 40385, 95545, 99425, 201925, 477725, 783469, 3917345, 19586725]

約数ペア:

[(1, 19586725), (5, 3917345), (25, 783469), (41, 477725), (97, 201925), (197, 99425), (205, 95545), (485, 40385), (985, 19885), (1025, 19109), (2425, 8077), (3977, 4925)]