80389780

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{17707}}^1$

素因数の和:17943

約数の個数: 24

約数和(自身を含む): 169571808

約数和(自身を除く): 89182028

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4540, 17707, 35414, 70828, 88535, 177070, 354140, 4019489, 8038978, 16077956, 20097445, 40194890, 80389780]

約数ペア:

[(1, 80389780), (2, 40194890), (4, 20097445), (5, 16077956), (10, 8038978), (20, 4019489), (227, 354140), (454, 177070), (908, 88535), (1135, 70828), (2270, 35414), (4540, 17707)]