129577040

素因数分解:

$2^4\times 5^1\times {\mathrm{1619713}}^1$

素因数の和:1619726

約数の個数: 20

約数和(自身を含む): 301266804

約数和(自身を除く): 171689764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1619713, 3239426, 6478852, 8098565, 12957704, 16197130, 25915408, 32394260, 64788520, 129577040]

約数ペア:

[(1, 129577040), (2, 64788520), (4, 32394260), (5, 25915408), (8, 16197130), (10, 12957704), (16, 8098565), (20, 6478852), (40, 3239426), (80, 1619713)]