57752720

素因数分解:

$2^4\times 5^1\times {\mathrm{721909}}^1$

素因数の和:721922

約数の個数: 20

約数和(自身を含む): 134275260

約数和(自身を除く): 76522540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 721909, 1443818, 2887636, 3609545, 5775272, 7219090, 11550544, 14438180, 28876360, 57752720]

約数ペア:

[(1, 57752720), (2, 28876360), (4, 14438180), (5, 11550544), (8, 7219090), (10, 5775272), (16, 3609545), (20, 2887636), (40, 1443818), (80, 721909)]