20165005

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19867}}^1$

素因数の和:19908

約数の個数: 16

約数和(自身を含む): 28609920

約数和(自身を除く): 8444915

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 19867, 99335, 139069, 576143, 695345, 2880715, 4033001, 20165005]

約数ペア:

[(1, 20165005), (5, 4033001), (7, 2880715), (29, 695345), (35, 576143), (145, 139069), (203, 99335), (1015, 19867)]