127821820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{913013}}^1$

素因数の和:913029

約数の個数: 24

約数和(自身を含む): 306772704

約数和(自身を除く): 178950884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 913013, 1826026, 3652052, 4565065, 6391091, 9130130, 12782182, 18260260, 25564364, 31955455, 63910910, 127821820]

約数ペア:

[(1, 127821820), (2, 63910910), (4, 31955455), (5, 25564364), (7, 18260260), (10, 12782182), (14, 9130130), (20, 6391091), (28, 4565065), (35, 3652052), (70, 1826026), (140, 913013)]