28671080

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6959}}^1$

素因数の和:7073

約数の個数: 32

約数和(自身を含む): 65145600

約数和(自身を除く): 36474520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 6959, 13918, 27836, 34795, 55672, 69590, 139180, 278360, 716777, 1433554, 2867108, 3583885, 5734216, 7167770, 14335540, 28671080]

約数ペア:

[(1, 28671080), (2, 14335540), (4, 7167770), (5, 5734216), (8, 3583885), (10, 2867108), (20, 1433554), (40, 716777), (103, 278360), (206, 139180), (412, 69590), (515, 55672), (824, 34795), (1030, 27836), (2060, 13918), (4120, 6959)]