20173902008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{974773}}^1$

素因数の和:974991

約数の個数: 32

約数和(自身を含む): 40940508000

約数和(自身を除く): 20766605992

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199, 398, 796, 1592, 2587, 5174, 10348, 20696, 974773, 1949546, 3899092, 7798184, 12672049, 25344098, 50688196, 101376392, 193979827, 387959654, 775919308, 1551838616, 2521737751, 5043475502, 10086951004, 20173902008]

約数ペア:

[(1, 20173902008), (2, 10086951004), (4, 5043475502), (8, 2521737751), (13, 1551838616), (26, 775919308), (52, 387959654), (104, 193979827), (199, 101376392), (398, 50688196), (796, 25344098), (1592, 12672049), (2587, 7798184), (5174, 3899092), (10348, 1949546), (20696, 974773)]