128465060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{81307}}^1$

素因数の和:81395

約数の個数: 24

約数和(自身を含む): 273194880

約数和(自身を除く): 144729820

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 81307, 162614, 325228, 406535, 813070, 1626140, 6423253, 12846506, 25693012, 32116265, 64232530, 128465060]

約数ペア:

[(1, 128465060), (2, 64232530), (4, 32116265), (5, 25693012), (10, 12846506), (20, 6423253), (79, 1626140), (158, 813070), (316, 406535), (395, 325228), (790, 162614), (1580, 81307)]