38980180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{24671}}^1$

素因数の和:24759

約数の個数: 24

約数和(自身を含む): 82897920

約数和(自身を除く): 43917740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 24671, 49342, 98684, 123355, 246710, 493420, 1949009, 3898018, 7796036, 9745045, 19490090, 38980180]

約数ペア:

[(1, 38980180), (2, 19490090), (4, 9745045), (5, 7796036), (10, 3898018), (20, 1949009), (79, 493420), (158, 246710), (316, 123355), (395, 98684), (790, 49342), (1580, 24671)]