80556280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{287701}}^1$

素因数の和:287719

約数の個数: 32

約数和(自身を含む): 207145440

約数和(自身を除く): 126589160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 287701, 575402, 1150804, 1438505, 2013907, 2301608, 2877010, 4027814, 5754020, 8055628, 10069535, 11508040, 16111256, 20139070, 40278140, 80556280]

約数ペア:

[(1, 80556280), (2, 40278140), (4, 20139070), (5, 16111256), (7, 11508040), (8, 10069535), (10, 8055628), (14, 5754020), (20, 4027814), (28, 2877010), (35, 2301608), (40, 2013907), (56, 1438505), (70, 1150804), (140, 575402), (280, 287701)]