201814040

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{20101}}^1$

素因数の和:20363

約数の個数: 32

約数和(自身を含む): 455913360

約数和(自身を除く): 254099320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 20101, 40202, 80404, 100505, 160808, 201010, 402020, 804040, 5045351, 10090702, 20181404, 25226755, 40362808, 50453510, 100907020, 201814040]

約数ペア:

[(1, 201814040), (2, 100907020), (4, 50453510), (5, 40362808), (8, 25226755), (10, 20181404), (20, 10090702), (40, 5045351), (251, 804040), (502, 402020), (1004, 201010), (1255, 160808), (2008, 100505), (2510, 80404), (5020, 40202), (10040, 20101)]