1235420

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 2615424

約数和(自身を除く): 1380004

約数列:

[1, 2, 4, 5, 10, 20, 223, 277, 446, 554, 892, 1108, 1115, 1385, 2230, 2770, 4460, 5540, 61771, 123542, 247084, 308855, 617710, 1235420]

約数ペア:

[(1, 1235420), (2, 617710), (4, 308855), (5, 247084), (10, 123542), (20, 61771), (223, 5540), (277, 4460), (446, 2770), (554, 2230), (892, 1385), (1108, 1115)]