20646365

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:692

約数の個数: 16

約数和(自身を含む): 25415040

約数和(自身を除く): 4768675

約数列:

[1, 5, 61, 139, 305, 487, 695, 2435, 8479, 29707, 42395, 67693, 148535, 338465, 4129273, 20646365]

約数ペア:

[(1, 20646365), (5, 4129273), (61, 338465), (139, 148535), (305, 67693), (487, 42395), (695, 29707), (2435, 8479)]