81443390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2341}}^1$

素因数の和:2433

約数の個数: 48

約数和(自身を含む): 173008224

約数和(自身を除く): 91564834

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 71, 98, 142, 245, 355, 490, 497, 710, 994, 2341, 2485, 3479, 4682, 4970, 6958, 11705, 16387, 17395, 23410, 32774, 34790, 81935, 114709, 163870, 166211, 229418, 332422, 573545, 831055, 1147090, 1163477, 1662110, 2326954, 5817385, 8144339, 11634770, 16288678, 40721695, 81443390]

約数ペア:

[(1, 81443390), (2, 40721695), (5, 16288678), (7, 11634770), (10, 8144339), (14, 5817385), (35, 2326954), (49, 1662110), (70, 1163477), (71, 1147090), (98, 831055), (142, 573545), (245, 332422), (355, 229418), (490, 166211), (497, 163870), (710, 114709), (994, 81935), (2341, 34790), (2485, 32774), (3479, 23410), (4682, 17395), (4970, 16387), (6958, 11705)]