20327216

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{607}}^1$

素因数の和:658

約数の個数: 80

約数和(自身を含む): 50663424

約数和(自身を除く): 30336208

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 46, 52, 56, 91, 92, 104, 112, 161, 182, 184, 208, 299, 322, 364, 368, 598, 607, 644, 728, 1196, 1214, 1288, 1456, 2093, 2392, 2428, 2576, 4186, 4249, 4784, 4856, 7891, 8372, 8498, 9712, 13961, 15782, 16744, 16996, 27922, 31564, 33488, 33992, 55237, 55844, 63128, 67984, 97727, 110474, 111688, 126256, 181493, 195454, 220948, 223376, 362986, 390908, 441896, 725972, 781816, 883792, 1270451, 1451944, 1563632, 2540902, 2903888, 5081804, 10163608, 20327216]

約数ペア:

[(1, 20327216), (2, 10163608), (4, 5081804), (7, 2903888), (8, 2540902), (13, 1563632), (14, 1451944), (16, 1270451), (23, 883792), (26, 781816), (28, 725972), (46, 441896), (52, 390908), (56, 362986), (91, 223376), (92, 220948), (104, 195454), (112, 181493), (161, 126256), (182, 111688), (184, 110474), (208, 97727), (299, 67984), (322, 63128), (364, 55844), (368, 55237), (598, 33992), (607, 33488), (644, 31564), (728, 27922), (1196, 16996), (1214, 16744), (1288, 15782), (1456, 13961), (2093, 9712), (2392, 8498), (2428, 8372), (2576, 7891), (4186, 4856), (4249, 4784)]