20171640970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{779731}}^1$

素因数の和:779950

約数の個数: 32

約数和(自身を含む): 39298492800

約数和(自身を除く): 19126851830

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 995, 1990, 2587, 5174, 12935, 25870, 779731, 1559462, 3898655, 7797310, 10136503, 20273006, 50682515, 101365030, 155166469, 310332938, 775832345, 1551664690, 2017164097, 4034328194, 10085820485, 20171640970]

約数ペア:

[(1, 20171640970), (2, 10085820485), (5, 4034328194), (10, 2017164097), (13, 1551664690), (26, 775832345), (65, 310332938), (130, 155166469), (199, 101365030), (398, 50682515), (995, 20273006), (1990, 10136503), (2587, 7797310), (5174, 3898655), (12935, 1559462), (25870, 779731)]