19700280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:103

約数の個数: 256

約数和(自身を含む): 73872000

約数和(自身を除く): 54171720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 29, 30, 34, 36, 37, 40, 45, 51, 54, 58, 60, 68, 72, 74, 85, 87, 90, 102, 108, 111, 116, 120, 135, 136, 145, 148, 153, 170, 174, 180, 185, 204, 216, 222, 232, 255, 261, 270, 290, 296, 306, 333, 340, 348, 360, 370, 408, 435, 444, 459, 493, 510, 522, 540, 555, 580, 612, 629, 666, 680, 696, 740, 765, 783, 870, 888, 918, 986, 999, 1020, 1044, 1073, 1080, 1110, 1160, 1224, 1258, 1305, 1332, 1479, 1480, 1530, 1566, 1665, 1740, 1836, 1887, 1972, 1998, 2040, 2088, 2146, 2220, 2295, 2465, 2516, 2610, 2664, 2958, 3060, 3132, 3145, 3219, 3330, 3480, 3672, 3774, 3915, 3944, 3996, 4292, 4437, 4440, 4590, 4930, 4995, 5032, 5220, 5365, 5661, 5916, 6120, 6264, 6290, 6438, 6660, 7395, 7548, 7830, 7992, 8584, 8874, 9180, 9435, 9657, 9860, 9990, 10440, 10730, 11322, 11832, 12580, 12876, 13311, 13320, 14790, 15096, 15660, 16095, 16983, 17748, 18241, 18360, 18870, 19314, 19720, 19980, 21460, 22185, 22644, 25160, 25752, 26622, 28305, 28971, 29580, 31320, 32190, 33966, 35496, 36482, 37740, 38628, 39960, 42920, 44370, 45288, 48285, 53244, 54723, 56610, 57942, 59160, 64380, 66555, 67932, 72964, 75480, 77256, 84915, 88740, 91205, 96570, 106488, 109446, 113220, 115884, 128760, 133110, 135864, 144855, 145928, 164169, 169830, 177480, 182410, 193140, 218892, 226440, 231768, 266220, 273615, 289710, 328338, 339660, 364820, 386280, 437784, 492507, 532440, 547230, 579420, 656676, 679320, 729640, 820845, 985014, 1094460, 1158840, 1313352, 1641690, 1970028, 2188920, 2462535, 3283380, 3940056, 4925070, 6566760, 9850140, 19700280]

約数ペア:

[(1, 19700280), (2, 9850140), (3, 6566760), (4, 4925070), (5, 3940056), (6, 3283380), (8, 2462535), (9, 2188920), (10, 1970028), (12, 1641690), (15, 1313352), (17, 1158840), (18, 1094460), (20, 985014), (24, 820845), (27, 729640), (29, 679320), (30, 656676), (34, 579420), (36, 547230), (37, 532440), (40, 492507), (45, 437784), (51, 386280), (54, 364820), (58, 339660), (60, 328338), (68, 289710), (72, 273615), (74, 266220), (85, 231768), (87, 226440), (90, 218892), (102, 193140), (108, 182410), (111, 177480), (116, 169830), (120, 164169), (135, 145928), (136, 144855), (145, 135864), (148, 133110), (153, 128760), (170, 115884), (174, 113220), (180, 109446), (185, 106488), (204, 96570), (216, 91205), (222, 88740), (232, 84915), (255, 77256), (261, 75480), (270, 72964), (290, 67932), (296, 66555), (306, 64380), (333, 59160), (340, 57942), (348, 56610), (360, 54723), (370, 53244), (408, 48285), (435, 45288), (444, 44370), (459, 42920), (493, 39960), (510, 38628), (522, 37740), (540, 36482), (555, 35496), (580, 33966), (612, 32190), (629, 31320), (666, 29580), (680, 28971), (696, 28305), (740, 26622), (765, 25752), (783, 25160), (870, 22644), (888, 22185), (918, 21460), (986, 19980), (999, 19720), (1020, 19314), (1044, 18870), (1073, 18360), (1080, 18241), (1110, 17748), (1160, 16983), (1224, 16095), (1258, 15660), (1305, 15096), (1332, 14790), (1479, 13320), (1480, 13311), (1530, 12876), (1566, 12580), (1665, 11832), (1740, 11322), (1836, 10730), (1887, 10440), (1972, 9990), (1998, 9860), (2040, 9657), (2088, 9435), (2146, 9180), (2220, 8874), (2295, 8584), (2465, 7992), (2516, 7830), (2610, 7548), (2664, 7395), (2958, 6660), (3060, 6438), (3132, 6290), (3145, 6264), (3219, 6120), (3330, 5916), (3480, 5661), (3672, 5365), (3774, 5220), (3915, 5032), (3944, 4995), (3996, 4930), (4292, 4590), (4437, 4440)]