51281880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:561

約数の個数: 128

約数和(自身を含む): 168376320

約数和(自身を除く): 117094440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 71, 78, 104, 120, 130, 142, 156, 195, 213, 260, 284, 312, 355, 390, 426, 463, 520, 568, 710, 780, 852, 923, 926, 1065, 1389, 1420, 1560, 1704, 1846, 1852, 2130, 2315, 2769, 2778, 2840, 3692, 3704, 4260, 4615, 4630, 5538, 5556, 6019, 6945, 7384, 8520, 9230, 9260, 11076, 11112, 12038, 13845, 13890, 18057, 18460, 18520, 22152, 24076, 27690, 27780, 30095, 32873, 36114, 36920, 48152, 55380, 55560, 60190, 65746, 72228, 90285, 98619, 110760, 120380, 131492, 144456, 164365, 180570, 197238, 240760, 262984, 328730, 361140, 394476, 427349, 493095, 657460, 722280, 788952, 854698, 986190, 1282047, 1314920, 1709396, 1972380, 2136745, 2564094, 3418792, 3944760, 4273490, 5128188, 6410235, 8546980, 10256376, 12820470, 17093960, 25640940, 51281880]

約数ペア:

[(1, 51281880), (2, 25640940), (3, 17093960), (4, 12820470), (5, 10256376), (6, 8546980), (8, 6410235), (10, 5128188), (12, 4273490), (13, 3944760), (15, 3418792), (20, 2564094), (24, 2136745), (26, 1972380), (30, 1709396), (39, 1314920), (40, 1282047), (52, 986190), (60, 854698), (65, 788952), (71, 722280), (78, 657460), (104, 493095), (120, 427349), (130, 394476), (142, 361140), (156, 328730), (195, 262984), (213, 240760), (260, 197238), (284, 180570), (312, 164365), (355, 144456), (390, 131492), (426, 120380), (463, 110760), (520, 98619), (568, 90285), (710, 72228), (780, 65746), (852, 60190), (923, 55560), (926, 55380), (1065, 48152), (1389, 36920), (1420, 36114), (1560, 32873), (1704, 30095), (1846, 27780), (1852, 27690), (2130, 24076), (2315, 22152), (2769, 18520), (2778, 18460), (2840, 18057), (3692, 13890), (3704, 13845), (4260, 12038), (4615, 11112), (4630, 11076), (5538, 9260), (5556, 9230), (6019, 8520), (6945, 7384)]