280967820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:432

約数の個数: 192

約数和(自身を含む): 957035520

約数和(自身を除く): 676067700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 137, 140, 190, 210, 228, 257, 266, 274, 285, 380, 399, 411, 420, 514, 532, 548, 570, 665, 685, 771, 798, 822, 959, 1028, 1140, 1285, 1330, 1370, 1542, 1596, 1644, 1799, 1918, 1995, 2055, 2570, 2603, 2660, 2740, 2877, 3084, 3598, 3836, 3855, 3990, 4110, 4795, 4883, 5140, 5206, 5397, 5754, 7196, 7710, 7809, 7980, 8220, 8995, 9590, 9766, 10412, 10794, 11508, 13015, 14385, 14649, 15420, 15618, 17990, 18221, 19180, 19532, 21588, 24415, 26030, 26985, 28770, 29298, 31236, 34181, 35209, 35980, 36442, 39045, 48830, 52060, 53970, 54663, 57540, 58596, 68362, 70418, 72884, 73245, 78090, 91105, 97660, 102543, 105627, 107940, 109326, 136724, 140836, 146490, 156180, 170905, 176045, 182210, 205086, 211254, 218652, 246463, 273315, 292980, 341810, 352090, 364420, 410172, 422508, 492926, 512715, 528135, 546630, 668971, 683620, 704180, 739389, 985852, 1025430, 1056270, 1093260, 1232315, 1337942, 1478778, 2006913, 2050860, 2112540, 2464630, 2675884, 2957556, 3344855, 3696945, 4013826, 4682797, 4929260, 6689710, 7393890, 8027652, 9365594, 10034565, 13379420, 14048391, 14787780, 18731188, 20069130, 23413985, 28096782, 40138260, 46827970, 56193564, 70241955, 93655940, 140483910, 280967820]

約数ペア:

[(1, 280967820), (2, 140483910), (3, 93655940), (4, 70241955), (5, 56193564), (6, 46827970), (7, 40138260), (10, 28096782), (12, 23413985), (14, 20069130), (15, 18731188), (19, 14787780), (20, 14048391), (21, 13379420), (28, 10034565), (30, 9365594), (35, 8027652), (38, 7393890), (42, 6689710), (57, 4929260), (60, 4682797), (70, 4013826), (76, 3696945), (84, 3344855), (95, 2957556), (105, 2675884), (114, 2464630), (133, 2112540), (137, 2050860), (140, 2006913), (190, 1478778), (210, 1337942), (228, 1232315), (257, 1093260), (266, 1056270), (274, 1025430), (285, 985852), (380, 739389), (399, 704180), (411, 683620), (420, 668971), (514, 546630), (532, 528135), (548, 512715), (570, 492926), (665, 422508), (685, 410172), (771, 364420), (798, 352090), (822, 341810), (959, 292980), (1028, 273315), (1140, 246463), (1285, 218652), (1330, 211254), (1370, 205086), (1542, 182210), (1596, 176045), (1644, 170905), (1799, 156180), (1918, 146490), (1995, 140836), (2055, 136724), (2570, 109326), (2603, 107940), (2660, 105627), (2740, 102543), (2877, 97660), (3084, 91105), (3598, 78090), (3836, 73245), (3855, 72884), (3990, 70418), (4110, 68362), (4795, 58596), (4883, 57540), (5140, 54663), (5206, 53970), (5397, 52060), (5754, 48830), (7196, 39045), (7710, 36442), (7809, 35980), (7980, 35209), (8220, 34181), (8995, 31236), (9590, 29298), (9766, 28770), (10412, 26985), (10794, 26030), (11508, 24415), (13015, 21588), (14385, 19532), (14649, 19180), (15420, 18221), (15618, 17990)]