198709280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^2$

素因数の和:287

約数の個数: 144

約数和(自身を含む): 589934016

約数和(自身を除く): 391224736

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 127, 140, 154, 160, 176, 220, 224, 254, 280, 308, 352, 385, 440, 508, 560, 616, 635, 770, 880, 889, 1016, 1120, 1232, 1270, 1397, 1540, 1760, 1778, 2032, 2464, 2540, 2794, 3080, 3556, 4064, 4445, 5080, 5588, 6160, 6985, 7112, 8890, 9779, 10160, 11176, 12320, 13970, 14224, 16129, 17780, 19558, 20320, 22352, 27940, 28448, 32258, 35560, 39116, 44704, 48895, 55880, 64516, 71120, 78232, 80645, 97790, 111760, 112903, 129032, 142240, 156464, 161290, 177419, 195580, 223520, 225806, 258064, 312928, 322580, 354838, 391160, 451612, 516128, 564515, 645160, 709676, 782320, 887095, 903224, 1129030, 1241933, 1290320, 1419352, 1564640, 1774190, 1806448, 2258060, 2483866, 2580640, 2838704, 3548380, 3612896, 4516120, 4967732, 5677408, 6209665, 7096760, 9032240, 9935464, 12419330, 14193520, 18064480, 19870928, 24838660, 28387040, 39741856, 49677320, 99354640, 198709280]

約数ペア:

[(1, 198709280), (2, 99354640), (4, 49677320), (5, 39741856), (7, 28387040), (8, 24838660), (10, 19870928), (11, 18064480), (14, 14193520), (16, 12419330), (20, 9935464), (22, 9032240), (28, 7096760), (32, 6209665), (35, 5677408), (40, 4967732), (44, 4516120), (55, 3612896), (56, 3548380), (70, 2838704), (77, 2580640), (80, 2483866), (88, 2258060), (110, 1806448), (112, 1774190), (127, 1564640), (140, 1419352), (154, 1290320), (160, 1241933), (176, 1129030), (220, 903224), (224, 887095), (254, 782320), (280, 709676), (308, 645160), (352, 564515), (385, 516128), (440, 451612), (508, 391160), (560, 354838), (616, 322580), (635, 312928), (770, 258064), (880, 225806), (889, 223520), (1016, 195580), (1120, 177419), (1232, 161290), (1270, 156464), (1397, 142240), (1540, 129032), (1760, 112903), (1778, 111760), (2032, 97790), (2464, 80645), (2540, 78232), (2794, 71120), (3080, 64516), (3556, 55880), (4064, 48895), (4445, 44704), (5080, 39116), (5588, 35560), (6160, 32258), (6985, 28448), (7112, 27940), (8890, 22352), (9779, 20320), (10160, 19558), (11176, 17780), (12320, 16129), (13970, 14224)]