289411655

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{20147}}^1$

素因数の和:20195

約数の個数: 24

約数和(自身を含む): 398205072

約数和(自身を除く): 108793417

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 2873, 14365, 20147, 100735, 261911, 342499, 1309555, 1712495, 3404843, 4452487, 17024215, 22262435, 57882331, 289411655]

約数ペア:

[(1, 289411655), (5, 57882331), (13, 22262435), (17, 17024215), (65, 4452487), (85, 3404843), (169, 1712495), (221, 1309555), (845, 342499), (1105, 261911), (2873, 100735), (14365, 20147)]