80571380

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{17747}}^1$

素因数の和:17983

約数の個数: 24

約数和(自身を含む): 169954848

約数和(自身を除く): 89383468

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4540, 17747, 35494, 70988, 88735, 177470, 354940, 4028569, 8057138, 16114276, 20142845, 40285690, 80571380]

約数ペア:

[(1, 80571380), (2, 40285690), (4, 20142845), (5, 16114276), (10, 8057138), (20, 4028569), (227, 354940), (454, 177470), (908, 88735), (1135, 70988), (2270, 35494), (4540, 17747)]