20192720

素因数分解:

$2^4\times 5^1\times {\mathrm{252409}}^1$

素因数の和:252422

約数の個数: 20

約数和(自身を含む): 46948260

約数和(自身を除く): 26755540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252409, 504818, 1009636, 1262045, 2019272, 2524090, 4038544, 5048180, 10096360, 20192720]

約数ペア:

[(1, 20192720), (2, 10096360), (4, 5048180), (5, 4038544), (8, 2524090), (10, 2019272), (16, 1262045), (20, 1009636), (40, 504818), (80, 252409)]