28384820

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8707}}^1$

素因数の和:8879

約数の個数: 24

約数和(自身を含む): 59980704

約数和(自身を除く): 31595884

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 8707, 17414, 34828, 43535, 87070, 174140, 1419241, 2838482, 5676964, 7096205, 14192410, 28384820]

約数ペア:

[(1, 28384820), (2, 14192410), (4, 7096205), (5, 5676964), (10, 2838482), (20, 1419241), (163, 174140), (326, 87070), (652, 43535), (815, 34828), (1630, 17414), (3260, 8707)]