120871280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{857}}^1$

素因数の和:954

約数の個数: 80

約数和(自身を含む): 294918624

約数和(自身を除く): 174047344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 656, 688, 820, 857, 860, 1640, 1714, 1720, 1763, 3280, 3428, 3440, 3526, 4285, 6856, 7052, 8570, 8815, 13712, 14104, 17140, 17630, 28208, 34280, 35137, 35260, 36851, 68560, 70274, 70520, 73702, 140548, 141040, 147404, 175685, 184255, 281096, 294808, 351370, 368510, 562192, 589616, 702740, 737020, 1405480, 1474040, 1510891, 2810960, 2948080, 3021782, 6043564, 7554455, 12087128, 15108910, 24174256, 30217820, 60435640, 120871280]

約数ペア:

[(1, 120871280), (2, 60435640), (4, 30217820), (5, 24174256), (8, 15108910), (10, 12087128), (16, 7554455), (20, 6043564), (40, 3021782), (41, 2948080), (43, 2810960), (80, 1510891), (82, 1474040), (86, 1405480), (164, 737020), (172, 702740), (205, 589616), (215, 562192), (328, 368510), (344, 351370), (410, 294808), (430, 281096), (656, 184255), (688, 175685), (820, 147404), (857, 141040), (860, 140548), (1640, 73702), (1714, 70520), (1720, 70274), (1763, 68560), (3280, 36851), (3428, 35260), (3440, 35137), (3526, 34280), (4285, 28208), (6856, 17630), (7052, 17140), (8570, 14104), (8815, 13712)]