19654940

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2593}}^1$

素因数の和:2981

約数の個数: 24

約数和(自身を含む): 41400240

約数和(自身を除く): 21745300

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 2593, 3790, 5186, 7580, 10372, 12965, 25930, 51860, 982747, 1965494, 3930988, 4913735, 9827470, 19654940]

約数ペア:

[(1, 19654940), (2, 9827470), (4, 4913735), (5, 3930988), (10, 1965494), (20, 982747), (379, 51860), (758, 25930), (1516, 12965), (1895, 10372), (2593, 7580), (3790, 5186)]