20699645

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1999}}^1$

素因数の和:2132

約数の個数: 16

約数和(自身を含む): 26400000

約数和(自身を除く): 5700355

約数列:

[1, 5, 19, 95, 109, 545, 1999, 2071, 9995, 10355, 37981, 189905, 217891, 1089455, 4139929, 20699645]

約数ペア:

[(1, 20699645), (5, 4139929), (19, 1089455), (95, 217891), (109, 189905), (545, 37981), (1999, 10355), (2071, 9995)]