20495854

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:240

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 12598802

約数列:

[1, 2, 37, 47, 71, 74, 83, 94, 142, 166, 1739, 2627, 3071, 3337, 3478, 3901, 5254, 5893, 6142, 6674, 7802, 11786, 123469, 144337, 218041, 246938, 276971, 288674, 436082, 553942, 10247927, 20495854]

約数ペア:

[(1, 20495854), (2, 10247927), (37, 553942), (47, 436082), (71, 288674), (74, 276971), (83, 246938), (94, 218041), (142, 144337), (166, 123469), (1739, 11786), (2627, 7802), (3071, 6674), (3337, 6142), (3478, 5893), (3901, 5254)]