721035

素因数分解:

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

素因数の和:137

約数の個数: 48

約数和(自身を含む): 1504800

約数和(自身を除く): 783765

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 109, 135, 147, 189, 245, 315, 327, 441, 545, 735, 763, 945, 981, 1323, 1635, 2205, 2289, 2943, 3815, 4905, 5341, 6615, 6867, 11445, 14715, 16023, 20601, 26705, 34335, 48069, 80115, 103005, 144207, 240345, 721035]

約数ペア:

[(1, 721035), (3, 240345), (5, 144207), (7, 103005), (9, 80115), (15, 48069), (21, 34335), (27, 26705), (35, 20601), (45, 16023), (49, 14715), (63, 11445), (105, 6867), (109, 6615), (135, 5341), (147, 4905), (189, 3815), (245, 2943), (315, 2289), (327, 2205), (441, 1635), (545, 1323), (735, 981), (763, 945)]