80296720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{143387}}^1$

素因数の和:143407

約数の個数: 40

約数和(自身を含む): 213361344

約数和(自身を除く): 133064624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 143387, 286774, 573548, 716935, 1003709, 1147096, 1433870, 2007418, 2294192, 2867740, 4014836, 5018545, 5735480, 8029672, 10037090, 11470960, 16059344, 20074180, 40148360, 80296720]

約数ペア:

[(1, 80296720), (2, 40148360), (4, 20074180), (5, 16059344), (7, 11470960), (8, 10037090), (10, 8029672), (14, 5735480), (16, 5018545), (20, 4014836), (28, 2867740), (35, 2294192), (40, 2007418), (56, 1433870), (70, 1147096), (80, 1003709), (112, 716935), (140, 573548), (280, 286774), (560, 143387)]