19438940

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2801}}^1$

素因数の和:3157

約数の個数: 24

約数和(自身を含む): 40954032

約数和(自身を除く): 21515092

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 2801, 3470, 5602, 6940, 11204, 14005, 28010, 56020, 971947, 1943894, 3887788, 4859735, 9719470, 19438940]

約数ペア:

[(1, 19438940), (2, 9719470), (4, 4859735), (5, 3887788), (10, 1943894), (20, 971947), (347, 56020), (694, 28010), (1388, 14005), (1735, 11204), (2801, 6940), (3470, 5602)]