28376880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:176

約数の個数: 240

約数和(自身を含む): 108564480

約数和(自身を除く): 80187600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 49, 56, 57, 60, 70, 76, 80, 84, 95, 98, 105, 112, 114, 120, 127, 133, 140, 147, 152, 168, 190, 196, 210, 228, 240, 245, 254, 266, 280, 285, 294, 304, 336, 380, 381, 392, 399, 420, 456, 490, 508, 532, 560, 570, 588, 635, 665, 735, 760, 762, 784, 798, 840, 889, 912, 931, 980, 1016, 1064, 1140, 1176, 1270, 1330, 1470, 1520, 1524, 1596, 1680, 1778, 1862, 1905, 1960, 1995, 2032, 2128, 2280, 2352, 2413, 2540, 2660, 2667, 2793, 2940, 3048, 3192, 3556, 3724, 3810, 3920, 3990, 4445, 4560, 4655, 4826, 5080, 5320, 5334, 5586, 5880, 6096, 6223, 6384, 7112, 7239, 7448, 7620, 7980, 8890, 9310, 9652, 10160, 10640, 10668, 11172, 11760, 12065, 12446, 13335, 13965, 14224, 14478, 14896, 15240, 15960, 16891, 17780, 18620, 18669, 19304, 21336, 22344, 24130, 24892, 26670, 27930, 28956, 30480, 31115, 31920, 33782, 35560, 36195, 37240, 37338, 38608, 42672, 44688, 48260, 49784, 50673, 53340, 55860, 57912, 62230, 67564, 71120, 72390, 74480, 74676, 84455, 93345, 96520, 99568, 101346, 106680, 111720, 115824, 118237, 124460, 135128, 144780, 149352, 168910, 186690, 193040, 202692, 213360, 223440, 236474, 248920, 253365, 270256, 289560, 298704, 337820, 354711, 373380, 405384, 472948, 497840, 506730, 579120, 591185, 675640, 709422, 746760, 810768, 945896, 1013460, 1182370, 1351280, 1418844, 1493520, 1773555, 1891792, 2026920, 2364740, 2837688, 3547110, 4053840, 4729480, 5675376, 7094220, 9458960, 14188440, 28376880]

約数ペア:

[(1, 28376880), (2, 14188440), (3, 9458960), (4, 7094220), (5, 5675376), (6, 4729480), (7, 4053840), (8, 3547110), (10, 2837688), (12, 2364740), (14, 2026920), (15, 1891792), (16, 1773555), (19, 1493520), (20, 1418844), (21, 1351280), (24, 1182370), (28, 1013460), (30, 945896), (35, 810768), (38, 746760), (40, 709422), (42, 675640), (48, 591185), (49, 579120), (56, 506730), (57, 497840), (60, 472948), (70, 405384), (76, 373380), (80, 354711), (84, 337820), (95, 298704), (98, 289560), (105, 270256), (112, 253365), (114, 248920), (120, 236474), (127, 223440), (133, 213360), (140, 202692), (147, 193040), (152, 186690), (168, 168910), (190, 149352), (196, 144780), (210, 135128), (228, 124460), (240, 118237), (245, 115824), (254, 111720), (266, 106680), (280, 101346), (285, 99568), (294, 96520), (304, 93345), (336, 84455), (380, 74676), (381, 74480), (392, 72390), (399, 71120), (420, 67564), (456, 62230), (490, 57912), (508, 55860), (532, 53340), (560, 50673), (570, 49784), (588, 48260), (635, 44688), (665, 42672), (735, 38608), (760, 37338), (762, 37240), (784, 36195), (798, 35560), (840, 33782), (889, 31920), (912, 31115), (931, 30480), (980, 28956), (1016, 27930), (1064, 26670), (1140, 24892), (1176, 24130), (1270, 22344), (1330, 21336), (1470, 19304), (1520, 18669), (1524, 18620), (1596, 17780), (1680, 16891), (1778, 15960), (1862, 15240), (1905, 14896), (1960, 14478), (1995, 14224), (2032, 13965), (2128, 13335), (2280, 12446), (2352, 12065), (2413, 11760), (2540, 11172), (2660, 10668), (2667, 10640), (2793, 10160), (2940, 9652), (3048, 9310), (3192, 8890), (3556, 7980), (3724, 7620), (3810, 7448), (3920, 7239), (3990, 7112), (4445, 6384), (4560, 6223), (4655, 6096), (4826, 5880), (5080, 5586), (5320, 5334)]