49397140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{189989}}^1$

素因数の和:190011

約数の個数: 24

約数和(自身を含む): 111714120

約数和(自身を除く): 62316980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 189989, 379978, 759956, 949945, 1899890, 2469857, 3799780, 4939714, 9879428, 12349285, 24698570, 49397140]

約数ペア:

[(1, 49397140), (2, 24698570), (4, 12349285), (5, 9879428), (10, 4939714), (13, 3799780), (20, 2469857), (26, 1899890), (52, 949945), (65, 759956), (130, 379978), (260, 189989)]