82778960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{863}}^1$

素因数の和:996

約数の個数: 80

約数和(自身を含む): 212129280

約数和(自身を除く): 129350320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 109, 110, 176, 218, 220, 436, 440, 545, 863, 872, 880, 1090, 1199, 1726, 1744, 2180, 2398, 3452, 4315, 4360, 4796, 5995, 6904, 8630, 8720, 9493, 9592, 11990, 13808, 17260, 18986, 19184, 23980, 34520, 37972, 47465, 47960, 69040, 75944, 94067, 94930, 95920, 151888, 188134, 189860, 376268, 379720, 470335, 752536, 759440, 940670, 1034737, 1505072, 1881340, 2069474, 3762680, 4138948, 5173685, 7525360, 8277896, 10347370, 16555792, 20694740, 41389480, 82778960]

約数ペア:

[(1, 82778960), (2, 41389480), (4, 20694740), (5, 16555792), (8, 10347370), (10, 8277896), (11, 7525360), (16, 5173685), (20, 4138948), (22, 3762680), (40, 2069474), (44, 1881340), (55, 1505072), (80, 1034737), (88, 940670), (109, 759440), (110, 752536), (176, 470335), (218, 379720), (220, 376268), (436, 189860), (440, 188134), (545, 151888), (863, 95920), (872, 94930), (880, 94067), (1090, 75944), (1199, 69040), (1726, 47960), (1744, 47465), (2180, 37972), (2398, 34520), (3452, 23980), (4315, 19184), (4360, 18986), (4796, 17260), (5995, 13808), (6904, 11990), (8630, 9592), (8720, 9493)]