805821740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{373}}^1\times {\mathrm{991}}^1$

素因数の和:1482

約数の個数: 48

約数和(自身を含む): 1714056960

約数和(自身を除く): 908235220

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 373, 436, 545, 746, 991, 1090, 1492, 1865, 1982, 2180, 3730, 3964, 4955, 7460, 9910, 19820, 40657, 81314, 108019, 162628, 203285, 216038, 369643, 406570, 432076, 540095, 739286, 813140, 1080190, 1478572, 1848215, 2160380, 3696430, 7392860, 40291087, 80582174, 161164348, 201455435, 402910870, 805821740]

約数ペア:

[(1, 805821740), (2, 402910870), (4, 201455435), (5, 161164348), (10, 80582174), (20, 40291087), (109, 7392860), (218, 3696430), (373, 2160380), (436, 1848215), (545, 1478572), (746, 1080190), (991, 813140), (1090, 739286), (1492, 540095), (1865, 432076), (1982, 406570), (2180, 369643), (3730, 216038), (3964, 203285), (4955, 162628), (7460, 108019), (9910, 81314), (19820, 40657)]