178933716

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20123}}^1$

素因数の和:20165

約数の個数: 72

約数和(自身を含む): 512759520

約数和(自身を除く): 333825804

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2964, 4446, 8892, 20123, 40246, 60369, 80492, 120738, 181107, 241476, 261599, 362214, 382337, 523198, 724428, 764674, 784797, 1046396, 1147011, 1529348, 1569594, 2294022, 2354391, 3139188, 3441033, 4588044, 4708782, 4970381, 6882066, 9417564, 9940762, 13764132, 14911143, 19881524, 29822286, 44733429, 59644572, 89466858, 178933716]

約数ペア:

[(1, 178933716), (2, 89466858), (3, 59644572), (4, 44733429), (6, 29822286), (9, 19881524), (12, 14911143), (13, 13764132), (18, 9940762), (19, 9417564), (26, 6882066), (36, 4970381), (38, 4708782), (39, 4588044), (52, 3441033), (57, 3139188), (76, 2354391), (78, 2294022), (114, 1569594), (117, 1529348), (156, 1147011), (171, 1046396), (228, 784797), (234, 764674), (247, 724428), (342, 523198), (468, 382337), (494, 362214), (684, 261599), (741, 241476), (988, 181107), (1482, 120738), (2223, 80492), (2964, 60369), (4446, 40246), (8892, 20123)]