20970205

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3109}}^1$

素因数の和:3204

約数の個数: 16

約数和(自身を含む): 26870400

約数和(自身を除く): 5900195

約数列:

[1, 5, 19, 71, 95, 355, 1349, 3109, 6745, 15545, 59071, 220739, 295355, 1103695, 4194041, 20970205]

約数ペア:

[(1, 20970205), (5, 4194041), (19, 1103695), (71, 295355), (95, 220739), (355, 59071), (1349, 15545), (3109, 6745)]