721198244

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{189989}}^1$

素因数の和:190079

約数の個数: 24

約数和(自身を含む): 1377807480

約数和(自身を除く): 656609236

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 189989, 379978, 759956, 2469857, 4939714, 9879428, 13869197, 27738394, 55476788, 180299561, 360599122, 721198244]

約数ペア:

[(1, 721198244), (2, 360599122), (4, 180299561), (13, 55476788), (26, 27738394), (52, 13869197), (73, 9879428), (146, 4939714), (292, 2469857), (949, 759956), (1898, 379978), (3796, 189989)]