15319180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 33707520

約数和(自身を除く): 18388340

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 379, 430, 470, 758, 860, 940, 1516, 1895, 2021, 3790, 4042, 7580, 8084, 10105, 16297, 17813, 20210, 32594, 35626, 40420, 65188, 71252, 81485, 89065, 162970, 178130, 325940, 356260, 765959, 1531918, 3063836, 3829795, 7659590, 15319180]

約数ペア:

[(1, 15319180), (2, 7659590), (4, 3829795), (5, 3063836), (10, 1531918), (20, 765959), (43, 356260), (47, 325940), (86, 178130), (94, 162970), (172, 89065), (188, 81485), (215, 71252), (235, 65188), (379, 40420), (430, 35626), (470, 32594), (758, 20210), (860, 17813), (940, 16297), (1516, 10105), (1895, 8084), (2021, 7580), (3790, 4042)]