127886980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491873}}^1$

素因数の和:491895

約数の個数: 24

約数和(自身を含む): 289221912

約数和(自身を除く): 161334932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 491873, 983746, 1967492, 2459365, 4918730, 6394349, 9837460, 12788698, 25577396, 31971745, 63943490, 127886980]

約数ペア:

[(1, 127886980), (2, 63943490), (4, 31971745), (5, 25577396), (10, 12788698), (13, 9837460), (20, 6394349), (26, 4918730), (52, 2459365), (65, 1967492), (130, 983746), (260, 491873)]