81096880

素因数分解:

$2^4\times 5^1\times {\mathrm{1013711}}^1$

素因数の和:1013724

約数の個数: 20

約数和(自身を含む): 188550432

約数和(自身を除く): 107453552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1013711, 2027422, 4054844, 5068555, 8109688, 10137110, 16219376, 20274220, 40548440, 81096880]

約数ペア:

[(1, 81096880), (2, 40548440), (4, 20274220), (5, 16219376), (8, 10137110), (10, 8109688), (16, 5068555), (20, 4054844), (40, 2027422), (80, 1013711)]