2140385

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 2964600

約数和(自身を除く): 824215

約数列:

[1, 5, 13, 17, 65, 85, 149, 169, 221, 745, 845, 1105, 1937, 2533, 2873, 9685, 12665, 14365, 25181, 32929, 125905, 164645, 428077, 2140385]

約数ペア:

[(1, 2140385), (5, 428077), (13, 164645), (17, 125905), (65, 32929), (85, 25181), (149, 14365), (169, 12665), (221, 9685), (745, 2873), (845, 2533), (1105, 1937)]