209715860

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{379}}^2$

素因数の和:840

約数の個数: 36

約数和(自身を含む): 447617268

約数和(自身を除く): 237901408

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 379, 730, 758, 1460, 1516, 1895, 3790, 7580, 27667, 55334, 110668, 138335, 143641, 276670, 287282, 553340, 574564, 718205, 1436410, 2872820, 10485793, 20971586, 41943172, 52428965, 104857930, 209715860]

約数ペア:

[(1, 209715860), (2, 104857930), (4, 52428965), (5, 41943172), (10, 20971586), (20, 10485793), (73, 2872820), (146, 1436410), (292, 718205), (365, 574564), (379, 553340), (730, 287282), (758, 276670), (1460, 143641), (1516, 138335), (1895, 110668), (3790, 55334), (7580, 27667)]