81000560

素因数分解:

$2^4\times 5^1\times {\mathrm{1012507}}^1$

素因数の和:1012520

約数の個数: 20

約数和(自身を含む): 188326488

約数和(自身を除く): 107325928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1012507, 2025014, 4050028, 5062535, 8100056, 10125070, 16200112, 20250140, 40500280, 81000560]

約数ペア:

[(1, 81000560), (2, 40500280), (4, 20250140), (5, 16200112), (8, 10125070), (10, 8100056), (16, 5062535), (20, 4050028), (40, 2025014), (80, 1012507)]