15131980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{39821}}^1$

素因数の和:39849

約数の個数: 24

約数和(自身を含む): 33450480

約数和(自身を除く): 18318500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 39821, 79642, 159284, 199105, 398210, 756599, 796420, 1513198, 3026396, 3782995, 7565990, 15131980]

約数ペア:

[(1, 15131980), (2, 7565990), (4, 3782995), (5, 3026396), (10, 1513198), (19, 796420), (20, 756599), (38, 398210), (76, 199105), (95, 159284), (190, 79642), (380, 39821)]