28267680

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:251

約数の個数: 192

約数和(自身を含む): 104509440

約数和(自身を除く): 76241760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 47, 48, 56, 60, 70, 80, 84, 94, 96, 105, 112, 120, 140, 141, 160, 168, 179, 188, 210, 224, 235, 240, 280, 282, 329, 336, 358, 376, 420, 470, 480, 537, 560, 564, 658, 672, 705, 716, 752, 840, 895, 940, 987, 1074, 1120, 1128, 1253, 1316, 1410, 1432, 1504, 1645, 1680, 1790, 1880, 1974, 2148, 2256, 2506, 2632, 2685, 2820, 2864, 3290, 3360, 3580, 3759, 3760, 3948, 4296, 4512, 4935, 5012, 5264, 5370, 5640, 5728, 6265, 6580, 7160, 7518, 7520, 7896, 8413, 8592, 9870, 10024, 10528, 10740, 11280, 12530, 13160, 14320, 15036, 15792, 16826, 17184, 18795, 19740, 20048, 21480, 22560, 25060, 25239, 26320, 28640, 30072, 31584, 33652, 37590, 39480, 40096, 42065, 42960, 50120, 50478, 52640, 58891, 60144, 67304, 75180, 78960, 84130, 85920, 100240, 100956, 117782, 120288, 126195, 134608, 150360, 157920, 168260, 176673, 200480, 201912, 235564, 252390, 269216, 294455, 300720, 336520, 353346, 403824, 471128, 504780, 588910, 601440, 673040, 706692, 807648, 883365, 942256, 1009560, 1177820, 1346080, 1413384, 1766730, 1884512, 2019120, 2355640, 2826768, 3533460, 4038240, 4711280, 5653536, 7066920, 9422560, 14133840, 28267680]

約数ペア:

[(1, 28267680), (2, 14133840), (3, 9422560), (4, 7066920), (5, 5653536), (6, 4711280), (7, 4038240), (8, 3533460), (10, 2826768), (12, 2355640), (14, 2019120), (15, 1884512), (16, 1766730), (20, 1413384), (21, 1346080), (24, 1177820), (28, 1009560), (30, 942256), (32, 883365), (35, 807648), (40, 706692), (42, 673040), (47, 601440), (48, 588910), (56, 504780), (60, 471128), (70, 403824), (80, 353346), (84, 336520), (94, 300720), (96, 294455), (105, 269216), (112, 252390), (120, 235564), (140, 201912), (141, 200480), (160, 176673), (168, 168260), (179, 157920), (188, 150360), (210, 134608), (224, 126195), (235, 120288), (240, 117782), (280, 100956), (282, 100240), (329, 85920), (336, 84130), (358, 78960), (376, 75180), (420, 67304), (470, 60144), (480, 58891), (537, 52640), (560, 50478), (564, 50120), (658, 42960), (672, 42065), (705, 40096), (716, 39480), (752, 37590), (840, 33652), (895, 31584), (940, 30072), (987, 28640), (1074, 26320), (1120, 25239), (1128, 25060), (1253, 22560), (1316, 21480), (1410, 20048), (1432, 19740), (1504, 18795), (1645, 17184), (1680, 16826), (1790, 15792), (1880, 15036), (1974, 14320), (2148, 13160), (2256, 12530), (2506, 11280), (2632, 10740), (2685, 10528), (2820, 10024), (2864, 9870), (3290, 8592), (3360, 8413), (3580, 7896), (3759, 7520), (3760, 7518), (3948, 7160), (4296, 6580), (4512, 6265), (4935, 5728), (5012, 5640), (5264, 5370)]