19624940

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2447}}^1$

素因数の和:2857

約数の個数: 24

約数和(自身を含む): 41332032

約数和(自身を除く): 21707092

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 2447, 4010, 4894, 8020, 9788, 12235, 24470, 48940, 981247, 1962494, 3924988, 4906235, 9812470, 19624940]

約数ペア:

[(1, 19624940), (2, 9812470), (4, 4906235), (5, 3924988), (10, 1962494), (20, 981247), (401, 48940), (802, 24470), (1604, 12235), (2005, 9788), (2447, 8020), (4010, 4894)]