18208255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 24744384

約数和(自身を除く): 6536129

約数列:

[1, 5, 13, 37, 65, 67, 113, 185, 335, 481, 565, 871, 1469, 2405, 2479, 4181, 4355, 7345, 7571, 12395, 20905, 32227, 37855, 54353, 98423, 161135, 271765, 280127, 492115, 1400635, 3641651, 18208255]

約数ペア:

[(1, 18208255), (5, 3641651), (13, 1400635), (37, 492115), (65, 280127), (67, 271765), (113, 161135), (185, 98423), (335, 54353), (481, 37855), (565, 32227), (871, 20905), (1469, 12395), (2405, 7571), (2479, 7345), (4181, 4355)]