240345

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{109}}^1$

素因数の和:134

約数の個数: 36

約数和(自身を含む): 489060

約数和(自身を除く): 248715

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 109, 147, 245, 315, 327, 441, 545, 735, 763, 981, 1635, 2205, 2289, 3815, 4905, 5341, 6867, 11445, 16023, 26705, 34335, 48069, 80115, 240345]

約数ペア:

[(1, 240345), (3, 80115), (5, 48069), (7, 34335), (9, 26705), (15, 16023), (21, 11445), (35, 6867), (45, 5341), (49, 4905), (63, 3815), (105, 2289), (109, 2205), (147, 1635), (245, 981), (315, 763), (327, 735), (441, 545)]