81821568

素因数分解:

$2^7\times 3^1\times {\mathrm{41}}^1\times {\mathrm{5197}}^1$

素因数の和:5255

約数の個数: 64

約数和(自身を含む): 222682320

約数和(自身を除く): 140860752

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 123, 128, 164, 192, 246, 328, 384, 492, 656, 984, 1312, 1968, 2624, 3936, 5197, 5248, 7872, 10394, 15591, 15744, 20788, 31182, 41576, 62364, 83152, 124728, 166304, 213077, 249456, 332608, 426154, 498912, 639231, 665216, 852308, 997824, 1278462, 1704616, 1995648, 2556924, 3409232, 5113848, 6818464, 10227696, 13636928, 20455392, 27273856, 40910784, 81821568]

約数ペア:

[(1, 81821568), (2, 40910784), (3, 27273856), (4, 20455392), (6, 13636928), (8, 10227696), (12, 6818464), (16, 5113848), (24, 3409232), (32, 2556924), (41, 1995648), (48, 1704616), (64, 1278462), (82, 997824), (96, 852308), (123, 665216), (128, 639231), (164, 498912), (192, 426154), (246, 332608), (328, 249456), (384, 213077), (492, 166304), (656, 124728), (984, 83152), (1312, 62364), (1968, 41576), (2624, 31182), (3936, 20788), (5197, 15744), (5248, 15591), (7872, 10394)]