86886680

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{21089}}^1$

素因数の和:21203

約数の個数: 32

約数和(自身を含む): 197402400

約数和(自身を除く): 110515720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 21089, 42178, 84356, 105445, 168712, 210890, 421780, 843560, 2172167, 4344334, 8688668, 10860835, 17377336, 21721670, 43443340, 86886680]

約数ペア:

[(1, 86886680), (2, 43443340), (4, 21721670), (5, 17377336), (8, 10860835), (10, 8688668), (20, 4344334), (40, 2172167), (103, 843560), (206, 421780), (412, 210890), (515, 168712), (824, 105445), (1030, 84356), (2060, 42178), (4120, 21089)]