4278140

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{523}}^1$

素因数の和:941

約数の個数: 24

約数和(自身を含む): 9023280

約数和(自身を除く): 4745140

約数列:

[1, 2, 4, 5, 10, 20, 409, 523, 818, 1046, 1636, 2045, 2092, 2615, 4090, 5230, 8180, 10460, 213907, 427814, 855628, 1069535, 2139070, 4278140]

約数ペア:

[(1, 4278140), (2, 2139070), (4, 1069535), (5, 855628), (10, 427814), (20, 213907), (409, 10460), (523, 8180), (818, 5230), (1046, 4090), (1636, 2615), (2045, 2092)]