561820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4013}}^1$

素因数の和:4029

約数の個数: 24

約数和(自身を含む): 1348704

約数和(自身を除く): 786884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4013, 8026, 16052, 20065, 28091, 40130, 56182, 80260, 112364, 140455, 280910, 561820]

約数ペア:

[(1, 561820), (2, 280910), (4, 140455), (5, 112364), (7, 80260), (10, 56182), (14, 40130), (20, 28091), (28, 20065), (35, 16052), (70, 8026), (140, 4013)]