51611560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1289}}^1$

素因数の和:1331

約数の個数: 128

約数和(自身を含む): 156038400

約数和(自身を除く): 104426840

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1289, 1430, 1540, 1820, 2002, 2578, 2860, 3080, 3640, 4004, 5005, 5156, 5720, 6445, 8008, 9023, 10010, 10312, 12890, 14179, 16757, 18046, 20020, 25780, 28358, 33514, 36092, 40040, 45115, 51560, 56716, 67028, 70895, 72184, 83785, 90230, 99253, 113432, 117299, 134056, 141790, 167570, 180460, 184327, 198506, 234598, 283580, 335140, 360920, 368654, 397012, 469196, 496265, 567160, 586495, 670280, 737308, 794024, 921635, 938392, 992530, 1172990, 1290289, 1474616, 1843270, 1985060, 2345980, 2580578, 3686540, 3970120, 4691960, 5161156, 6451445, 7373080, 10322312, 12902890, 25805780, 51611560]

約数ペア:

[(1, 51611560), (2, 25805780), (4, 12902890), (5, 10322312), (7, 7373080), (8, 6451445), (10, 5161156), (11, 4691960), (13, 3970120), (14, 3686540), (20, 2580578), (22, 2345980), (26, 1985060), (28, 1843270), (35, 1474616), (40, 1290289), (44, 1172990), (52, 992530), (55, 938392), (56, 921635), (65, 794024), (70, 737308), (77, 670280), (88, 586495), (91, 567160), (104, 496265), (110, 469196), (130, 397012), (140, 368654), (143, 360920), (154, 335140), (182, 283580), (220, 234598), (260, 198506), (280, 184327), (286, 180460), (308, 167570), (364, 141790), (385, 134056), (440, 117299), (455, 113432), (520, 99253), (572, 90230), (616, 83785), (715, 72184), (728, 70895), (770, 67028), (910, 56716), (1001, 51560), (1144, 45115), (1289, 40040), (1430, 36092), (1540, 33514), (1820, 28358), (2002, 25780), (2578, 20020), (2860, 18046), (3080, 16757), (3640, 14179), (4004, 12890), (5005, 10312), (5156, 10010), (5720, 9023), (6445, 8008)]