201994180

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{165569}}^1$

素因数の和:165639

約数の個数: 24

約数和(自身を含む): 431144280

約数和(自身を除く): 229150100

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 165569, 331138, 662276, 827845, 1655690, 3311380, 10099709, 20199418, 40398836, 50498545, 100997090, 201994180]

約数ペア:

[(1, 201994180), (2, 100997090), (4, 50498545), (5, 40398836), (10, 20199418), (20, 10099709), (61, 3311380), (122, 1655690), (244, 827845), (305, 662276), (610, 331138), (1220, 165569)]