20520552

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{739}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 55944000

約数和(自身を除く): 35423448

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 89, 104, 156, 178, 267, 312, 356, 534, 712, 739, 1068, 1157, 1478, 2136, 2217, 2314, 2956, 3471, 4434, 4628, 5912, 6942, 8868, 9256, 9607, 13884, 17736, 19214, 27768, 28821, 38428, 57642, 65771, 76856, 115284, 131542, 197313, 230568, 263084, 394626, 526168, 789252, 855023, 1578504, 1710046, 2565069, 3420092, 5130138, 6840184, 10260276, 20520552]

約数ペア:

[(1, 20520552), (2, 10260276), (3, 6840184), (4, 5130138), (6, 3420092), (8, 2565069), (12, 1710046), (13, 1578504), (24, 855023), (26, 789252), (39, 526168), (52, 394626), (78, 263084), (89, 230568), (104, 197313), (156, 131542), (178, 115284), (267, 76856), (312, 65771), (356, 57642), (534, 38428), (712, 28821), (739, 27768), (1068, 19214), (1157, 17736), (1478, 13884), (2136, 9607), (2217, 9256), (2314, 8868), (2956, 6942), (3471, 5912), (4434, 4628)]