20180260

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9257}}^1$

素因数の和:9375

約数の個数: 24

約数和(自身を含む): 42771960

約数和(自身を除く): 22591700

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9257, 18514, 37028, 46285, 92570, 185140, 1009013, 2018026, 4036052, 5045065, 10090130, 20180260]

約数ペア:

[(1, 20180260), (2, 10090130), (4, 5045065), (5, 4036052), (10, 2018026), (20, 1009013), (109, 185140), (218, 92570), (436, 46285), (545, 37028), (1090, 18514), (2180, 9257)]