87216880

素因数分解:

$2^4\times 5^1\times {\mathrm{1090211}}^1$

素因数の和:1090224

約数の個数: 20

約数和(自身を含む): 202779432

約数和(自身を除く): 115562552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1090211, 2180422, 4360844, 5451055, 8721688, 10902110, 17443376, 21804220, 43608440, 87216880]

約数ペア:

[(1, 87216880), (2, 43608440), (4, 21804220), (5, 17443376), (8, 10902110), (10, 8721688), (16, 5451055), (20, 4360844), (40, 2180422), (80, 1090211)]