101440180

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{12401}}^1$

素因数の和:12819

約数の個数: 24

約数和(自身を含む): 213562440

約数和(自身を除く): 112122260

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 12401, 24802, 49604, 62005, 124010, 248020, 5072009, 10144018, 20288036, 25360045, 50720090, 101440180]

約数ペア:

[(1, 101440180), (2, 50720090), (4, 25360045), (5, 20288036), (10, 10144018), (20, 5072009), (409, 248020), (818, 124010), (1636, 62005), (2045, 49604), (4090, 24802), (8180, 12401)]