20808216240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{728579}}^1$

素因数の和:728619

約数の個数: 160

約数和(自身を含む): 78057146880

約数和(自身を除く): 57248930640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 48, 51, 56, 60, 68, 70, 80, 84, 85, 102, 105, 112, 119, 120, 136, 140, 168, 170, 204, 210, 238, 240, 255, 272, 280, 336, 340, 357, 408, 420, 476, 510, 560, 595, 680, 714, 816, 840, 952, 1020, 1190, 1360, 1428, 1680, 1785, 1904, 2040, 2380, 2856, 3570, 4080, 4760, 5712, 7140, 9520, 14280, 28560, 728579, 1457158, 2185737, 2914316, 3642895, 4371474, 5100053, 5828632, 7285790, 8742948, 10200106, 10928685, 11657264, 12385843, 14571580, 15300159, 17485896, 20400212, 21857370, 24771686, 25500265, 29143160, 30600318, 34971792, 37157529, 40800424, 43714740, 49543372, 51000530, 58286320, 61200636, 61929215, 74315058, 76500795, 81600848, 86700901, 87429480, 99086744, 102001060, 122401272, 123858430, 148630116, 153001590, 173401802, 174858960, 185787645, 198173488, 204002120, 244802544, 247716860, 260102703, 297260232, 306003180, 346803604, 371575290, 408004240, 433504505, 495433720, 520205406, 594520464, 612006360, 693607208, 743150580, 867009010, 990867440, 1040410812, 1224012720, 1300513515, 1387214416, 1486301160, 1734018020, 2080821624, 2601027030, 2972602320, 3468036040, 4161643248, 5202054060, 6936072080, 10404108120, 20808216240]

約数ペア:

[(1, 20808216240), (2, 10404108120), (3, 6936072080), (4, 5202054060), (5, 4161643248), (6, 3468036040), (7, 2972602320), (8, 2601027030), (10, 2080821624), (12, 1734018020), (14, 1486301160), (15, 1387214416), (16, 1300513515), (17, 1224012720), (20, 1040410812), (21, 990867440), (24, 867009010), (28, 743150580), (30, 693607208), (34, 612006360), (35, 594520464), (40, 520205406), (42, 495433720), (48, 433504505), (51, 408004240), (56, 371575290), (60, 346803604), (68, 306003180), (70, 297260232), (80, 260102703), (84, 247716860), (85, 244802544), (102, 204002120), (105, 198173488), (112, 185787645), (119, 174858960), (120, 173401802), (136, 153001590), (140, 148630116), (168, 123858430), (170, 122401272), (204, 102001060), (210, 99086744), (238, 87429480), (240, 86700901), (255, 81600848), (272, 76500795), (280, 74315058), (336, 61929215), (340, 61200636), (357, 58286320), (408, 51000530), (420, 49543372), (476, 43714740), (510, 40800424), (560, 37157529), (595, 34971792), (680, 30600318), (714, 29143160), (816, 25500265), (840, 24771686), (952, 21857370), (1020, 20400212), (1190, 17485896), (1360, 15300159), (1428, 14571580), (1680, 12385843), (1785, 11657264), (1904, 10928685), (2040, 10200106), (2380, 8742948), (2856, 7285790), (3570, 5828632), (4080, 5100053), (4760, 4371474), (5712, 3642895), (7140, 2914316), (9520, 2185737), (14280, 1457158), (28560, 728579)]