12665780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{33331}}^1$

素因数の和:33359

約数の個数: 24

約数和(自身を含む): 27998880

約数和(自身を除く): 15333100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 33331, 66662, 133324, 166655, 333310, 633289, 666620, 1266578, 2533156, 3166445, 6332890, 12665780]

約数ペア:

[(1, 12665780), (2, 6332890), (4, 3166445), (5, 2533156), (10, 1266578), (19, 666620), (20, 633289), (38, 333310), (76, 166655), (95, 133324), (190, 66662), (380, 33331)]