80384560

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2531}}^1$

素因数の和:2941

約数の個数: 40

約数和(自身を含む): 187438896

約数和(自身を除く): 107054336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1588, 1985, 2531, 3176, 3970, 5062, 6352, 7940, 10124, 12655, 15880, 20248, 25310, 31760, 40496, 50620, 101240, 202480, 1004807, 2009614, 4019228, 5024035, 8038456, 10048070, 16076912, 20096140, 40192280, 80384560]

約数ペア:

[(1, 80384560), (2, 40192280), (4, 20096140), (5, 16076912), (8, 10048070), (10, 8038456), (16, 5024035), (20, 4019228), (40, 2009614), (80, 1004807), (397, 202480), (794, 101240), (1588, 50620), (1985, 40496), (2531, 31760), (3176, 25310), (3970, 20248), (5062, 15880), (6352, 12655), (7940, 10124)]