77938440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{649487}}^1$

素因数の和:649501

約数の個数: 32

約数和(自身を含む): 233815680

約数和(自身を除く): 155877240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 649487, 1298974, 1948461, 2597948, 3247435, 3896922, 5195896, 6494870, 7793844, 9742305, 12989740, 15587688, 19484610, 25979480, 38969220, 77938440]

約数ペア:

[(1, 77938440), (2, 38969220), (3, 25979480), (4, 19484610), (5, 15587688), (6, 12989740), (8, 9742305), (10, 7793844), (12, 6494870), (15, 5195896), (20, 3896922), (24, 3247435), (30, 2597948), (40, 1948461), (60, 1298974), (120, 649487)]