20820240

素因数分解:

$2^4\times 3^7\times 5^1\times 7^1\times {\mathrm{17}}^1$

素因数の和:58

約数の個数: 320

約数和(自身を含む): 87851520

約数和(自身を除く): 67031280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 27, 28, 30, 34, 35, 36, 40, 42, 45, 48, 51, 54, 56, 60, 63, 68, 70, 72, 80, 81, 84, 85, 90, 102, 105, 108, 112, 119, 120, 126, 135, 136, 140, 144, 153, 162, 168, 170, 180, 189, 204, 210, 216, 238, 240, 243, 252, 255, 270, 272, 280, 306, 315, 324, 336, 340, 357, 360, 378, 405, 408, 420, 432, 459, 476, 486, 504, 510, 540, 560, 567, 595, 612, 630, 648, 680, 714, 720, 729, 756, 765, 810, 816, 840, 918, 945, 952, 972, 1008, 1020, 1071, 1080, 1134, 1190, 1215, 1224, 1260, 1296, 1360, 1377, 1428, 1458, 1512, 1530, 1620, 1680, 1701, 1785, 1836, 1890, 1904, 1944, 2040, 2142, 2160, 2187, 2268, 2295, 2380, 2430, 2448, 2520, 2754, 2835, 2856, 2916, 3024, 3060, 3213, 3240, 3402, 3570, 3645, 3672, 3780, 3888, 4080, 4131, 4284, 4374, 4536, 4590, 4760, 4860, 5040, 5103, 5355, 5508, 5670, 5712, 5832, 6120, 6426, 6480, 6804, 6885, 7140, 7290, 7344, 7560, 8262, 8505, 8568, 8748, 9072, 9180, 9520, 9639, 9720, 10206, 10710, 10935, 11016, 11340, 11664, 12240, 12393, 12852, 13608, 13770, 14280, 14580, 15120, 15309, 16065, 16524, 17010, 17136, 17496, 18360, 19278, 19440, 20412, 20655, 21420, 21870, 22032, 22680, 24786, 25515, 25704, 27216, 27540, 28560, 28917, 29160, 30618, 32130, 33048, 34020, 34992, 36720, 37179, 38556, 40824, 41310, 42840, 43740, 45360, 48195, 49572, 51030, 51408, 55080, 57834, 58320, 61236, 61965, 64260, 66096, 68040, 74358, 76545, 77112, 81648, 82620, 85680, 86751, 87480, 96390, 99144, 102060, 110160, 115668, 122472, 123930, 128520, 136080, 144585, 148716, 153090, 154224, 165240, 173502, 174960, 185895, 192780, 198288, 204120, 231336, 244944, 247860, 257040, 260253, 289170, 297432, 306180, 330480, 347004, 371790, 385560, 408240, 433755, 462672, 495720, 520506, 578340, 594864, 612360, 694008, 743580, 771120, 867510, 991440, 1041012, 1156680, 1224720, 1301265, 1388016, 1487160, 1735020, 2082024, 2313360, 2602530, 2974320, 3470040, 4164048, 5205060, 6940080, 10410120, 20820240]

約数ペア:

[(1, 20820240), (2, 10410120), (3, 6940080), (4, 5205060), (5, 4164048), (6, 3470040), (7, 2974320), (8, 2602530), (9, 2313360), (10, 2082024), (12, 1735020), (14, 1487160), (15, 1388016), (16, 1301265), (17, 1224720), (18, 1156680), (20, 1041012), (21, 991440), (24, 867510), (27, 771120), (28, 743580), (30, 694008), (34, 612360), (35, 594864), (36, 578340), (40, 520506), (42, 495720), (45, 462672), (48, 433755), (51, 408240), (54, 385560), (56, 371790), (60, 347004), (63, 330480), (68, 306180), (70, 297432), (72, 289170), (80, 260253), (81, 257040), (84, 247860), (85, 244944), (90, 231336), (102, 204120), (105, 198288), (108, 192780), (112, 185895), (119, 174960), (120, 173502), (126, 165240), (135, 154224), (136, 153090), (140, 148716), (144, 144585), (153, 136080), (162, 128520), (168, 123930), (170, 122472), (180, 115668), (189, 110160), (204, 102060), (210, 99144), (216, 96390), (238, 87480), (240, 86751), (243, 85680), (252, 82620), (255, 81648), (270, 77112), (272, 76545), (280, 74358), (306, 68040), (315, 66096), (324, 64260), (336, 61965), (340, 61236), (357, 58320), (360, 57834), (378, 55080), (405, 51408), (408, 51030), (420, 49572), (432, 48195), (459, 45360), (476, 43740), (486, 42840), (504, 41310), (510, 40824), (540, 38556), (560, 37179), (567, 36720), (595, 34992), (612, 34020), (630, 33048), (648, 32130), (680, 30618), (714, 29160), (720, 28917), (729, 28560), (756, 27540), (765, 27216), (810, 25704), (816, 25515), (840, 24786), (918, 22680), (945, 22032), (952, 21870), (972, 21420), (1008, 20655), (1020, 20412), (1071, 19440), (1080, 19278), (1134, 18360), (1190, 17496), (1215, 17136), (1224, 17010), (1260, 16524), (1296, 16065), (1360, 15309), (1377, 15120), (1428, 14580), (1458, 14280), (1512, 13770), (1530, 13608), (1620, 12852), (1680, 12393), (1701, 12240), (1785, 11664), (1836, 11340), (1890, 11016), (1904, 10935), (1944, 10710), (2040, 10206), (2142, 9720), (2160, 9639), (2187, 9520), (2268, 9180), (2295, 9072), (2380, 8748), (2430, 8568), (2448, 8505), (2520, 8262), (2754, 7560), (2835, 7344), (2856, 7290), (2916, 7140), (3024, 6885), (3060, 6804), (3213, 6480), (3240, 6426), (3402, 6120), (3570, 5832), (3645, 5712), (3672, 5670), (3780, 5508), (3888, 5355), (4080, 5103), (4131, 5040), (4284, 4860), (4374, 4760), (4536, 4590)]