81093680

素因数分解:

$2^4\times 5^1\times {\mathrm{1013671}}^1$

素因数の和:1013684

約数の個数: 20

約数和(自身を含む): 188542992

約数和(自身を除く): 107449312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1013671, 2027342, 4054684, 5068355, 8109368, 10136710, 16218736, 20273420, 40546840, 81093680]

約数ペア:

[(1, 81093680), (2, 40546840), (4, 20273420), (5, 16218736), (8, 10136710), (10, 8109368), (16, 5068355), (20, 4054684), (40, 2027342), (80, 1013671)]