20206640

素因数分解:

$2^4\times 5^1\times {\mathrm{252583}}^1$

素因数の和:252596

約数の個数: 20

約数和(自身を含む): 46980624

約数和(自身を除く): 26773984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252583, 505166, 1010332, 1262915, 2020664, 2525830, 4041328, 5051660, 10103320, 20206640]

約数ペア:

[(1, 20206640), (2, 10103320), (4, 5051660), (5, 4041328), (8, 2525830), (10, 2020664), (16, 1262915), (20, 1010332), (40, 505166), (80, 252583)]