18002740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128591}}^1$

素因数の和:128607

約数の個数: 24

約数和(自身を含む): 43206912

約数和(自身を除く): 25204172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128591, 257182, 514364, 642955, 900137, 1285910, 1800274, 2571820, 3600548, 4500685, 9001370, 18002740]

約数ペア:

[(1, 18002740), (2, 9001370), (4, 4500685), (5, 3600548), (7, 2571820), (10, 1800274), (14, 1285910), (20, 900137), (28, 642955), (35, 514364), (70, 257182), (140, 128591)]