20565505

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3049}}^1$

素因数の和:3144

約数の個数: 16

約数和(自身を含む): 26352000

約数和(自身を除く): 5786495

約数列:

[1, 5, 19, 71, 95, 355, 1349, 3049, 6745, 15245, 57931, 216479, 289655, 1082395, 4113101, 20565505]

約数ペア:

[(1, 20565505), (5, 4113101), (19, 1082395), (71, 289655), (95, 216479), (355, 57931), (1349, 15245), (3049, 6745)]