81181728

素因数分解:

$2^5\times 3^2\times {\mathrm{61}}^1\times {\mathrm{4621}}^1$

素因数の和:4698

約数の個数: 72

約数和(自身を含む): 234695916

約数和(自身を除く): 153514188

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 61, 72, 96, 122, 144, 183, 244, 288, 366, 488, 549, 732, 976, 1098, 1464, 1952, 2196, 2928, 4392, 4621, 5856, 8784, 9242, 13863, 17568, 18484, 27726, 36968, 41589, 55452, 73936, 83178, 110904, 147872, 166356, 221808, 281881, 332712, 443616, 563762, 665424, 845643, 1127524, 1330848, 1691286, 2255048, 2536929, 3382572, 4510096, 5073858, 6765144, 9020192, 10147716, 13530288, 20295432, 27060576, 40590864, 81181728]

約数ペア:

[(1, 81181728), (2, 40590864), (3, 27060576), (4, 20295432), (6, 13530288), (8, 10147716), (9, 9020192), (12, 6765144), (16, 5073858), (18, 4510096), (24, 3382572), (32, 2536929), (36, 2255048), (48, 1691286), (61, 1330848), (72, 1127524), (96, 845643), (122, 665424), (144, 563762), (183, 443616), (244, 332712), (288, 281881), (366, 221808), (488, 166356), (549, 147872), (732, 110904), (976, 83178), (1098, 73936), (1464, 55452), (1952, 41589), (2196, 36968), (2928, 27726), (4392, 18484), (4621, 17568), (5856, 13863), (8784, 9242)]