261570640

素因数分解:

$2^4\times 5^1\times {\mathrm{379}}^1\times {\mathrm{8627}}^1$

素因数の和:9019

約数の個数: 40

約数和(自身を含む): 609827040

約数和(自身を除く): 348256400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 379, 758, 1516, 1895, 3032, 3790, 6064, 7580, 8627, 15160, 17254, 30320, 34508, 43135, 69016, 86270, 138032, 172540, 345080, 690160, 3269633, 6539266, 13078532, 16348165, 26157064, 32696330, 52314128, 65392660, 130785320, 261570640]

約数ペア:

[(1, 261570640), (2, 130785320), (4, 65392660), (5, 52314128), (8, 32696330), (10, 26157064), (16, 16348165), (20, 13078532), (40, 6539266), (80, 3269633), (379, 690160), (758, 345080), (1516, 172540), (1895, 138032), (3032, 86270), (3790, 69016), (6064, 43135), (7580, 34508), (8627, 30320), (15160, 17254)]