2159380

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1069}}^1$

素因数の和:1179

約数の個数: 24

約数和(自身を含む): 4583880

約数和(自身を除く): 2424500

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 1069, 2020, 2138, 4276, 5345, 10690, 21380, 107969, 215938, 431876, 539845, 1079690, 2159380]

約数ペア:

[(1, 2159380), (2, 1079690), (4, 539845), (5, 431876), (10, 215938), (20, 107969), (101, 21380), (202, 10690), (404, 5345), (505, 4276), (1010, 2138), (1069, 2020)]