199914980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{344681}}^1$

素因数の和:344719

約数の個数: 24

約数和(自身を含む): 434299320

約数和(自身を除く): 234384340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 344681, 689362, 1378724, 1723405, 3446810, 6893620, 9995749, 19991498, 39982996, 49978745, 99957490, 199914980]

約数ペア:

[(1, 199914980), (2, 99957490), (4, 49978745), (5, 39982996), (10, 19991498), (20, 9995749), (29, 6893620), (58, 3446810), (116, 1723405), (145, 1378724), (290, 689362), (580, 344681)]