38967580

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1931}}^1$

素因数の和:2949

約数の個数: 24

約数和(自身を含む): 81955440

約数和(自身を除く): 42987860

約数列:

[1, 2, 4, 5, 10, 20, 1009, 1931, 2018, 3862, 4036, 5045, 7724, 9655, 10090, 19310, 20180, 38620, 1948379, 3896758, 7793516, 9741895, 19483790, 38967580]

約数ペア:

[(1, 38967580), (2, 19483790), (4, 9741895), (5, 7793516), (10, 3896758), (20, 1948379), (1009, 38620), (1931, 20180), (2018, 19310), (3862, 10090), (4036, 9655), (5045, 7724)]