81181368

素因数分解:

$2^3\times 3^2\times {\mathrm{641}}^1\times {\mathrm{1759}}^1$

素因数の和:2412

約数の個数: 48

約数和(自身を含む): 220334400

約数和(自身を除く): 139153032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 641, 1282, 1759, 1923, 2564, 3518, 3846, 5128, 5277, 5769, 7036, 7692, 10554, 11538, 14072, 15384, 15831, 21108, 23076, 31662, 42216, 46152, 63324, 126648, 1127519, 2255038, 3382557, 4510076, 6765114, 9020152, 10147671, 13530228, 20295342, 27060456, 40590684, 81181368]

約数ペア:

[(1, 81181368), (2, 40590684), (3, 27060456), (4, 20295342), (6, 13530228), (8, 10147671), (9, 9020152), (12, 6765114), (18, 4510076), (24, 3382557), (36, 2255038), (72, 1127519), (641, 126648), (1282, 63324), (1759, 46152), (1923, 42216), (2564, 31662), (3518, 23076), (3846, 21108), (5128, 15831), (5277, 15384), (5769, 14072), (7036, 11538), (7692, 10554)]