19947870720

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{50929}}^1$

素因数の和:50975

約数の個数: 240

約数和(自身を含む): 73150351560

約数和(自身を除く): 53202480840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 64, 68, 72, 80, 85, 90, 96, 102, 120, 128, 136, 144, 153, 160, 170, 180, 192, 204, 240, 255, 256, 272, 288, 306, 320, 340, 360, 384, 408, 480, 510, 512, 544, 576, 612, 640, 680, 720, 765, 768, 816, 960, 1020, 1088, 1152, 1224, 1280, 1360, 1440, 1530, 1536, 1632, 1920, 2040, 2176, 2304, 2448, 2560, 2720, 2880, 3060, 3264, 3840, 4080, 4352, 4608, 4896, 5440, 5760, 6120, 6528, 7680, 8160, 8704, 9792, 10880, 11520, 12240, 13056, 16320, 19584, 21760, 23040, 24480, 26112, 32640, 39168, 43520, 48960, 50929, 65280, 78336, 97920, 101858, 130560, 152787, 195840, 203716, 254645, 305574, 391680, 407432, 458361, 509290, 611148, 763935, 814864, 865793, 916722, 1018580, 1222296, 1527870, 1629728, 1731586, 1833444, 2037160, 2291805, 2444592, 2597379, 3055740, 3259456, 3463172, 3666888, 4074320, 4328965, 4583610, 4889184, 5194758, 6111480, 6518912, 6926344, 7333776, 7792137, 8148640, 8657930, 9167220, 9778368, 10389516, 12222960, 12986895, 13037824, 13852688, 14667552, 15584274, 16297280, 17315860, 18334440, 19556736, 20779032, 24445920, 25973790, 26075648, 27705376, 29335104, 31168548, 32594560, 34631720, 36668880, 38960685, 39113472, 41558064, 48891840, 51947580, 55410752, 58670208, 62337096, 65189120, 69263440, 73337760, 77921370, 78226944, 83116128, 97783680, 103895160, 110821504, 117340416, 124674192, 130378240, 138526880, 146675520, 155842740, 166232256, 195567360, 207790320, 221643008, 234680832, 249348384, 277053760, 293351040, 311685480, 332464512, 391134720, 415580640, 443286016, 498696768, 554107520, 586702080, 623370960, 664929024, 831161280, 997393536, 1108215040, 1173404160, 1246741920, 1329858048, 1662322560, 1994787072, 2216430080, 2493483840, 3324645120, 3989574144, 4986967680, 6649290240, 9973935360, 19947870720]

約数ペア:

[(1, 19947870720), (2, 9973935360), (3, 6649290240), (4, 4986967680), (5, 3989574144), (6, 3324645120), (8, 2493483840), (9, 2216430080), (10, 1994787072), (12, 1662322560), (15, 1329858048), (16, 1246741920), (17, 1173404160), (18, 1108215040), (20, 997393536), (24, 831161280), (30, 664929024), (32, 623370960), (34, 586702080), (36, 554107520), (40, 498696768), (45, 443286016), (48, 415580640), (51, 391134720), (60, 332464512), (64, 311685480), (68, 293351040), (72, 277053760), (80, 249348384), (85, 234680832), (90, 221643008), (96, 207790320), (102, 195567360), (120, 166232256), (128, 155842740), (136, 146675520), (144, 138526880), (153, 130378240), (160, 124674192), (170, 117340416), (180, 110821504), (192, 103895160), (204, 97783680), (240, 83116128), (255, 78226944), (256, 77921370), (272, 73337760), (288, 69263440), (306, 65189120), (320, 62337096), (340, 58670208), (360, 55410752), (384, 51947580), (408, 48891840), (480, 41558064), (510, 39113472), (512, 38960685), (544, 36668880), (576, 34631720), (612, 32594560), (640, 31168548), (680, 29335104), (720, 27705376), (765, 26075648), (768, 25973790), (816, 24445920), (960, 20779032), (1020, 19556736), (1088, 18334440), (1152, 17315860), (1224, 16297280), (1280, 15584274), (1360, 14667552), (1440, 13852688), (1530, 13037824), (1536, 12986895), (1632, 12222960), (1920, 10389516), (2040, 9778368), (2176, 9167220), (2304, 8657930), (2448, 8148640), (2560, 7792137), (2720, 7333776), (2880, 6926344), (3060, 6518912), (3264, 6111480), (3840, 5194758), (4080, 4889184), (4352, 4583610), (4608, 4328965), (4896, 4074320), (5440, 3666888), (5760, 3463172), (6120, 3259456), (6528, 3055740), (7680, 2597379), (8160, 2444592), (8704, 2291805), (9792, 2037160), (10880, 1833444), (11520, 1731586), (12240, 1629728), (13056, 1527870), (16320, 1222296), (19584, 1018580), (21760, 916722), (23040, 865793), (24480, 814864), (26112, 763935), (32640, 611148), (39168, 509290), (43520, 458361), (48960, 407432), (50929, 391680), (65280, 305574), (78336, 254645), (97920, 203716), (101858, 195840), (130560, 152787)]