89664560

素因数分解:

$2^4\times 5^1\times {\mathrm{1120807}}^1$

素因数の和:1120820

約数の個数: 20

約数和(自身を含む): 208470288

約数和(自身を除く): 118805728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1120807, 2241614, 4483228, 5604035, 8966456, 11208070, 17932912, 22416140, 44832280, 89664560]

約数ペア:

[(1, 89664560), (2, 44832280), (4, 22416140), (5, 17932912), (8, 11208070), (10, 8966456), (16, 5604035), (20, 4483228), (40, 2241614), (80, 1120807)]