80747440

素因数分解:

$2^4\times 5^1\times {\mathrm{1009343}}^1$

素因数の和:1009356

約数の個数: 20

約数和(自身を含む): 187737984

約数和(自身を除く): 106990544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1009343, 2018686, 4037372, 5046715, 8074744, 10093430, 16149488, 20186860, 40373720, 80747440]

約数ペア:

[(1, 80747440), (2, 40373720), (4, 20186860), (5, 16149488), (8, 10093430), (10, 8074744), (16, 5046715), (20, 4037372), (40, 2018686), (80, 1009343)]