80139220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{572423}}^1$

素因数の和:572439

約数の個数: 24

約数和(自身を含む): 192334464

約数和(自身を除く): 112195244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 572423, 1144846, 2289692, 2862115, 4006961, 5724230, 8013922, 11448460, 16027844, 20034805, 40069610, 80139220]

約数ペア:

[(1, 80139220), (2, 40069610), (4, 20034805), (5, 16027844), (7, 11448460), (10, 8013922), (14, 5724230), (20, 4006961), (28, 2862115), (35, 2289692), (70, 1144846), (140, 572423)]