20690351640

素因数分解:

$2^3\times 3^5\times 5^1\times 7^1\times {\mathrm{304091}}^1$

素因数の和:304124

約数の個数: 192

約数和(自身を含む): 79696431360

約数和(自身を除く): 59006079720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 315, 324, 360, 378, 405, 420, 486, 504, 540, 567, 630, 648, 756, 810, 840, 945, 972, 1080, 1134, 1215, 1260, 1512, 1620, 1701, 1890, 1944, 2268, 2430, 2520, 2835, 3240, 3402, 3780, 4536, 4860, 5670, 6804, 7560, 8505, 9720, 11340, 13608, 17010, 22680, 34020, 68040, 304091, 608182, 912273, 1216364, 1520455, 1824546, 2128637, 2432728, 2736819, 3040910, 3649092, 4257274, 4561365, 5473638, 6081820, 6385911, 7298184, 8210457, 8514548, 9122730, 10643185, 10947276, 12163640, 12771822, 13684095, 16420914, 17029096, 18245460, 19157733, 21286370, 21894552, 24631371, 25543644, 27368190, 31929555, 32841828, 36490920, 38315466, 41052285, 42572740, 49262742, 51087288, 54736380, 57473199, 63859110, 65683656, 73894113, 76630932, 82104570, 85145480, 95788665, 98525484, 109472760, 114946398, 123156855, 127718220, 147788226, 153261864, 164209140, 172419597, 191577330, 197050968, 229892796, 246313710, 255436440, 287365995, 295576452, 328418280, 344839194, 369470565, 383154660, 459785592, 492627420, 517258791, 574731990, 591152904, 689678388, 738941130, 766309320, 862097985, 985254840, 1034517582, 1149463980, 1379356776, 1477882260, 1724195970, 2069035164, 2298927960, 2586293955, 2955764520, 3448391940, 4138070328, 5172587910, 6896783880, 10345175820, 20690351640]

約数ペア:

[(1, 20690351640), (2, 10345175820), (3, 6896783880), (4, 5172587910), (5, 4138070328), (6, 3448391940), (7, 2955764520), (8, 2586293955), (9, 2298927960), (10, 2069035164), (12, 1724195970), (14, 1477882260), (15, 1379356776), (18, 1149463980), (20, 1034517582), (21, 985254840), (24, 862097985), (27, 766309320), (28, 738941130), (30, 689678388), (35, 591152904), (36, 574731990), (40, 517258791), (42, 492627420), (45, 459785592), (54, 383154660), (56, 369470565), (60, 344839194), (63, 328418280), (70, 295576452), (72, 287365995), (81, 255436440), (84, 246313710), (90, 229892796), (105, 197050968), (108, 191577330), (120, 172419597), (126, 164209140), (135, 153261864), (140, 147788226), (162, 127718220), (168, 123156855), (180, 114946398), (189, 109472760), (210, 98525484), (216, 95788665), (243, 85145480), (252, 82104570), (270, 76630932), (280, 73894113), (315, 65683656), (324, 63859110), (360, 57473199), (378, 54736380), (405, 51087288), (420, 49262742), (486, 42572740), (504, 41052285), (540, 38315466), (567, 36490920), (630, 32841828), (648, 31929555), (756, 27368190), (810, 25543644), (840, 24631371), (945, 21894552), (972, 21286370), (1080, 19157733), (1134, 18245460), (1215, 17029096), (1260, 16420914), (1512, 13684095), (1620, 12771822), (1701, 12163640), (1890, 10947276), (1944, 10643185), (2268, 9122730), (2430, 8514548), (2520, 8210457), (2835, 7298184), (3240, 6385911), (3402, 6081820), (3780, 5473638), (4536, 4561365), (4860, 4257274), (5670, 3649092), (6804, 3040910), (7560, 2736819), (8505, 2432728), (9720, 2128637), (11340, 1824546), (13608, 1520455), (17010, 1216364), (22680, 912273), (34020, 608182), (68040, 304091)]