81045804

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{337}}^1\times {\mathrm{409}}^1$

素因数の和:767

約数の個数: 72

約数和(自身を含む): 221173680

約数和(自身を除く): 140127876

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 337, 409, 588, 674, 818, 1011, 1227, 1348, 1636, 2022, 2359, 2454, 2863, 4044, 4718, 4908, 5726, 7077, 8589, 9436, 11452, 14154, 16513, 17178, 20041, 28308, 33026, 34356, 40082, 49539, 60123, 66052, 80164, 99078, 120246, 137833, 198156, 240492, 275666, 413499, 551332, 826998, 964831, 1653996, 1929662, 2894493, 3859324, 5788986, 6753817, 11577972, 13507634, 20261451, 27015268, 40522902, 81045804]

約数ペア:

[(1, 81045804), (2, 40522902), (3, 27015268), (4, 20261451), (6, 13507634), (7, 11577972), (12, 6753817), (14, 5788986), (21, 3859324), (28, 2894493), (42, 1929662), (49, 1653996), (84, 964831), (98, 826998), (147, 551332), (196, 413499), (294, 275666), (337, 240492), (409, 198156), (588, 137833), (674, 120246), (818, 99078), (1011, 80164), (1227, 66052), (1348, 60123), (1636, 49539), (2022, 40082), (2359, 34356), (2454, 33026), (2863, 28308), (4044, 20041), (4718, 17178), (4908, 16513), (5726, 14154), (7077, 11452), (8589, 9436)]