201990318440

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{16448723}}^1$

素因数の和:16449041

約数の個数: 32

約数和(自身を含む): 455958629280

約数和(自身を除く): 253968310840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 16448723, 32897446, 65794892, 82243615, 131589784, 164487230, 328974460, 657948920, 5049757961, 10099515922, 20199031844, 25248789805, 40398063688, 50497579610, 100995159220, 201990318440]

約数ペア:

[(1, 201990318440), (2, 100995159220), (4, 50497579610), (5, 40398063688), (8, 25248789805), (10, 20199031844), (20, 10099515922), (40, 5049757961), (307, 657948920), (614, 328974460), (1228, 164487230), (1535, 131589784), (2456, 82243615), (3070, 65794892), (6140, 32897446), (12280, 16448723)]