2470840

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 5604480

約数和(自身を除く): 3133640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 277, 446, 554, 892, 1108, 1115, 1385, 1784, 2216, 2230, 2770, 4460, 5540, 8920, 11080, 61771, 123542, 247084, 308855, 494168, 617710, 1235420, 2470840]

約数ペア:

[(1, 2470840), (2, 1235420), (4, 617710), (5, 494168), (8, 308855), (10, 247084), (20, 123542), (40, 61771), (223, 11080), (277, 8920), (446, 5540), (554, 4460), (892, 2770), (1108, 2230), (1115, 2216), (1385, 1784)]