2002820

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{419}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 4233600

約数和(自身を除く): 2230780

約数列:

[1, 2, 4, 5, 10, 20, 239, 419, 478, 838, 956, 1195, 1676, 2095, 2390, 4190, 4780, 8380, 100141, 200282, 400564, 500705, 1001410, 2002820]

約数ペア:

[(1, 2002820), (2, 1001410), (4, 500705), (5, 400564), (10, 200282), (20, 100141), (239, 8380), (419, 4780), (478, 4190), (838, 2390), (956, 2095), (1195, 1676)]