1620422320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:324

約数の個数: 240

約数和(自身を含む): 4506274080

約数和(自身を除く): 2885851760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 43, 44, 55, 68, 80, 85, 86, 88, 110, 121, 136, 170, 172, 176, 187, 215, 220, 229, 242, 272, 340, 344, 374, 430, 440, 458, 473, 484, 605, 680, 688, 731, 748, 860, 880, 916, 935, 946, 968, 1145, 1210, 1360, 1462, 1496, 1720, 1832, 1870, 1892, 1936, 2057, 2290, 2365, 2420, 2519, 2924, 2992, 3440, 3655, 3664, 3740, 3784, 3893, 4114, 4580, 4730, 4840, 5038, 5203, 5848, 7310, 7480, 7568, 7786, 8041, 8228, 9160, 9460, 9680, 9847, 10076, 10285, 10406, 11696, 12595, 14620, 14960, 15572, 16082, 16456, 18320, 18920, 19465, 19694, 20152, 20570, 20812, 25190, 26015, 27709, 29240, 31144, 32164, 32912, 37840, 38930, 39388, 40205, 40304, 41140, 41624, 42823, 49235, 50380, 52030, 55418, 58480, 62288, 64328, 77860, 78776, 80410, 82280, 83248, 85646, 88451, 98470, 100760, 104060, 108317, 110836, 128656, 138545, 155720, 157552, 160820, 164560, 167399, 171292, 176902, 196940, 201520, 208120, 214115, 216634, 221672, 277090, 311440, 321640, 334798, 342584, 353804, 393880, 416240, 428230, 433268, 442255, 443344, 471053, 541585, 554180, 643280, 669596, 685168, 707608, 787760, 836995, 856460, 866536, 884510, 942106, 1083170, 1108360, 1191487, 1339192, 1415216, 1673990, 1712920, 1733072, 1769020, 1841389, 1884212, 2166340, 2216720, 2355265, 2382974, 2678384, 3347980, 3425840, 3538040, 3682778, 3768424, 4332680, 4710530, 4765948, 5957435, 6695960, 7076080, 7365556, 7536848, 8665360, 9206945, 9421060, 9531896, 11914870, 13391920, 14731112, 18413890, 18842120, 19063792, 20255279, 23829740, 29462224, 36827780, 37684240, 40510558, 47659480, 73655560, 81021116, 95318960, 101276395, 147311120, 162042232, 202552790, 324084464, 405105580, 810211160, 1620422320]

約数ペア:

[(1, 1620422320), (2, 810211160), (4, 405105580), (5, 324084464), (8, 202552790), (10, 162042232), (11, 147311120), (16, 101276395), (17, 95318960), (20, 81021116), (22, 73655560), (34, 47659480), (40, 40510558), (43, 37684240), (44, 36827780), (55, 29462224), (68, 23829740), (80, 20255279), (85, 19063792), (86, 18842120), (88, 18413890), (110, 14731112), (121, 13391920), (136, 11914870), (170, 9531896), (172, 9421060), (176, 9206945), (187, 8665360), (215, 7536848), (220, 7365556), (229, 7076080), (242, 6695960), (272, 5957435), (340, 4765948), (344, 4710530), (374, 4332680), (430, 3768424), (440, 3682778), (458, 3538040), (473, 3425840), (484, 3347980), (605, 2678384), (680, 2382974), (688, 2355265), (731, 2216720), (748, 2166340), (860, 1884212), (880, 1841389), (916, 1769020), (935, 1733072), (946, 1712920), (968, 1673990), (1145, 1415216), (1210, 1339192), (1360, 1191487), (1462, 1108360), (1496, 1083170), (1720, 942106), (1832, 884510), (1870, 866536), (1892, 856460), (1936, 836995), (2057, 787760), (2290, 707608), (2365, 685168), (2420, 669596), (2519, 643280), (2924, 554180), (2992, 541585), (3440, 471053), (3655, 443344), (3664, 442255), (3740, 433268), (3784, 428230), (3893, 416240), (4114, 393880), (4580, 353804), (4730, 342584), (4840, 334798), (5038, 321640), (5203, 311440), (5848, 277090), (7310, 221672), (7480, 216634), (7568, 214115), (7786, 208120), (8041, 201520), (8228, 196940), (9160, 176902), (9460, 171292), (9680, 167399), (9847, 164560), (10076, 160820), (10285, 157552), (10406, 155720), (11696, 138545), (12595, 128656), (14620, 110836), (14960, 108317), (15572, 104060), (16082, 100760), (16456, 98470), (18320, 88451), (18920, 85646), (19465, 83248), (19694, 82280), (20152, 80410), (20570, 78776), (20812, 77860), (25190, 64328), (26015, 62288), (27709, 58480), (29240, 55418), (31144, 52030), (32164, 50380), (32912, 49235), (37840, 42823), (38930, 41624), (39388, 41140), (40205, 40304)]