20157260

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4217}}^1$

素因数の和:4465

約数の個数: 24

約数和(自身を含む): 42517440

約数和(自身を除く): 22360180

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4217, 4780, 8434, 16868, 21085, 42170, 84340, 1007863, 2015726, 4031452, 5039315, 10078630, 20157260]

約数ペア:

[(1, 20157260), (2, 10078630), (4, 5039315), (5, 4031452), (10, 2015726), (20, 1007863), (239, 84340), (478, 42170), (956, 21085), (1195, 16868), (2390, 8434), (4217, 4780)]