20747660

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4133}}^1$

素因数の和:4393

約数の個数: 24

約数和(自身を含む): 43754256

約数和(自身を除く): 23006596

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 4133, 5020, 8266, 16532, 20665, 41330, 82660, 1037383, 2074766, 4149532, 5186915, 10373830, 20747660]

約数ペア:

[(1, 20747660), (2, 10373830), (4, 5186915), (5, 4149532), (10, 2074766), (20, 1037383), (251, 82660), (502, 41330), (1004, 20665), (1255, 16532), (2510, 8266), (4133, 5020)]