90922640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{26431}}^1$

素因数の和:26487

約数の個数: 40

約数和(自身を含む): 216319488

約数和(自身を除く): 125396848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 26431, 52862, 105724, 132155, 211448, 264310, 422896, 528620, 1057240, 1136533, 2114480, 2273066, 4546132, 5682665, 9092264, 11365330, 18184528, 22730660, 45461320, 90922640]

約数ペア:

[(1, 90922640), (2, 45461320), (4, 22730660), (5, 18184528), (8, 11365330), (10, 9092264), (16, 5682665), (20, 4546132), (40, 2273066), (43, 2114480), (80, 1136533), (86, 1057240), (172, 528620), (215, 422896), (344, 264310), (430, 211448), (688, 132155), (860, 105724), (1720, 52862), (3440, 26431)]