20907725

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{11779}}^1$

素因数の和:11860

約数の個数: 12

約数和(自身を含む): 26292960

約数和(自身を除く): 5385235

約数列:

[1, 5, 25, 71, 355, 1775, 11779, 58895, 294475, 836309, 4181545, 20907725]

約数ペア:

[(1, 20907725), (5, 4181545), (25, 836309), (71, 294475), (355, 58895), (1775, 11779)]