78624560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140401}}^1$

素因数の和:140421

約数の個数: 40

約数和(自身を含む): 208918176

約数和(自身を除く): 130293616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140401, 280802, 561604, 702005, 982807, 1123208, 1404010, 1965614, 2246416, 2808020, 3931228, 4914035, 5616040, 7862456, 9828070, 11232080, 15724912, 19656140, 39312280, 78624560]

約数ペア:

[(1, 78624560), (2, 39312280), (4, 19656140), (5, 15724912), (7, 11232080), (8, 9828070), (10, 7862456), (14, 5616040), (16, 4914035), (20, 3931228), (28, 2808020), (35, 2246416), (40, 1965614), (56, 1404010), (70, 1123208), (80, 982807), (112, 702005), (140, 561604), (280, 280802), (560, 140401)]