20657202650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1255757}}^1$

素因数の和:1255823

約数の個数: 48

約数和(自身を含む): 44845629696

約数和(自身を除く): 24188427046

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 47, 50, 70, 94, 175, 235, 329, 350, 470, 658, 1175, 1645, 2350, 3290, 8225, 16450, 1255757, 2511514, 6278785, 8790299, 12557570, 17580598, 31393925, 43951495, 59020579, 62787850, 87902990, 118041158, 219757475, 295102895, 413144053, 439514950, 590205790, 826288106, 1475514475, 2065720265, 2951028950, 4131440530, 10328601325, 20657202650]

約数ペア:

[(1, 20657202650), (2, 10328601325), (5, 4131440530), (7, 2951028950), (10, 2065720265), (14, 1475514475), (25, 826288106), (35, 590205790), (47, 439514950), (50, 413144053), (70, 295102895), (94, 219757475), (175, 118041158), (235, 87902990), (329, 62787850), (350, 59020579), (470, 43951495), (658, 31393925), (1175, 17580598), (1645, 12557570), (2350, 8790299), (3290, 6278785), (8225, 2511514), (16450, 1255757)]