20199251905

素因数分解:

$5^1\times 7^1\times {\mathrm{5657}}^1\times {\mathrm{102019}}^1$

素因数の和:107688

約数の個数: 16

約数和(自身を含む): 27706999680

約数和(自身を除く): 7507747775

約数列:

[1, 5, 7, 35, 5657, 28285, 39599, 102019, 197995, 510095, 714133, 3570665, 577121483, 2885607415, 4039850381, 20199251905]

約数ペア:

[(1, 20199251905), (5, 4039850381), (7, 2885607415), (35, 577121483), (5657, 3570665), (28285, 714133), (39599, 510095), (102019, 197995)]