77722280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27367}}^1$

素因数の和:27449

約数の個数: 32

約数和(自身を含む): 177344640

約数和(自身を除く): 99622360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 27367, 54734, 109468, 136835, 218936, 273670, 547340, 1094680, 1943057, 3886114, 7772228, 9715285, 15544456, 19430570, 38861140, 77722280]

約数ペア:

[(1, 77722280), (2, 38861140), (4, 19430570), (5, 15544456), (8, 9715285), (10, 7772228), (20, 3886114), (40, 1943057), (71, 1094680), (142, 547340), (284, 273670), (355, 218936), (568, 136835), (710, 109468), (1420, 54734), (2840, 27367)]