19854580

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9829}}^1$

素因数の和:9939

約数の個数: 24

約数和(自身を含む): 42111720

約数和(自身を除く): 22257140

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9829, 19658, 39316, 49145, 98290, 196580, 992729, 1985458, 3970916, 4963645, 9927290, 19854580]

約数ペア:

[(1, 19854580), (2, 9927290), (4, 4963645), (5, 3970916), (10, 1985458), (20, 992729), (101, 196580), (202, 98290), (404, 49145), (505, 39316), (1010, 19658), (2020, 9829)]