21326391520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{37}}^2\times {\mathrm{1987}}^1$

素因数の和:2090

約数の個数: 216

約数和(自身を含む): 60266661336

約数和(自身を除く): 38940269816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 70, 74, 80, 98, 112, 140, 148, 160, 185, 196, 224, 245, 259, 280, 296, 370, 392, 490, 518, 560, 592, 740, 784, 980, 1036, 1120, 1184, 1295, 1369, 1480, 1568, 1813, 1960, 1987, 2072, 2590, 2738, 2960, 3626, 3920, 3974, 4144, 5180, 5476, 5920, 6845, 7252, 7840, 7948, 8288, 9065, 9583, 9935, 10360, 10952, 13690, 13909, 14504, 15896, 18130, 19166, 19870, 20720, 21904, 27380, 27818, 29008, 31792, 36260, 38332, 39740, 41440, 43808, 47915, 54760, 55636, 58016, 63584, 67081, 69545, 72520, 73519, 76664, 79480, 95830, 97363, 109520, 111272, 134162, 139090, 145040, 147038, 153328, 158960, 191660, 194726, 219040, 222544, 268324, 278180, 290080, 294076, 306656, 317920, 335405, 367595, 383320, 389452, 445088, 486815, 514633, 536648, 556360, 588152, 670810, 735190, 766640, 778904, 973630, 1029266, 1073296, 1112720, 1176304, 1341620, 1470380, 1533280, 1557808, 1947260, 2058532, 2146592, 2225440, 2352608, 2573165, 2683240, 2720203, 2940760, 3115616, 3602431, 3894520, 4117064, 5146330, 5366480, 5440406, 5881520, 7204862, 7789040, 8234128, 10292660, 10732960, 10880812, 11763040, 13601015, 14409724, 15578080, 16468256, 18012155, 19041421, 20585320, 21761624, 27202030, 28819448, 36024310, 38082842, 41170640, 43523248, 54404060, 57638896, 72048620, 76165684, 82341280, 87046496, 95207105, 108808120, 115277792, 133289947, 144097240, 152331368, 190414210, 217616240, 266579894, 288194480, 304662736, 380828420, 435232480, 533159788, 576388960, 609325472, 666449735, 761656840, 1066319576, 1332899470, 1523313680, 2132639152, 2665798940, 3046627360, 4265278304, 5331597880, 10663195760, 21326391520]

約数ペア:

[(1, 21326391520), (2, 10663195760), (4, 5331597880), (5, 4265278304), (7, 3046627360), (8, 2665798940), (10, 2132639152), (14, 1523313680), (16, 1332899470), (20, 1066319576), (28, 761656840), (32, 666449735), (35, 609325472), (37, 576388960), (40, 533159788), (49, 435232480), (56, 380828420), (70, 304662736), (74, 288194480), (80, 266579894), (98, 217616240), (112, 190414210), (140, 152331368), (148, 144097240), (160, 133289947), (185, 115277792), (196, 108808120), (224, 95207105), (245, 87046496), (259, 82341280), (280, 76165684), (296, 72048620), (370, 57638896), (392, 54404060), (490, 43523248), (518, 41170640), (560, 38082842), (592, 36024310), (740, 28819448), (784, 27202030), (980, 21761624), (1036, 20585320), (1120, 19041421), (1184, 18012155), (1295, 16468256), (1369, 15578080), (1480, 14409724), (1568, 13601015), (1813, 11763040), (1960, 10880812), (1987, 10732960), (2072, 10292660), (2590, 8234128), (2738, 7789040), (2960, 7204862), (3626, 5881520), (3920, 5440406), (3974, 5366480), (4144, 5146330), (5180, 4117064), (5476, 3894520), (5920, 3602431), (6845, 3115616), (7252, 2940760), (7840, 2720203), (7948, 2683240), (8288, 2573165), (9065, 2352608), (9583, 2225440), (9935, 2146592), (10360, 2058532), (10952, 1947260), (13690, 1557808), (13909, 1533280), (14504, 1470380), (15896, 1341620), (18130, 1176304), (19166, 1112720), (19870, 1073296), (20720, 1029266), (21904, 973630), (27380, 778904), (27818, 766640), (29008, 735190), (31792, 670810), (36260, 588152), (38332, 556360), (39740, 536648), (41440, 514633), (43808, 486815), (47915, 445088), (54760, 389452), (55636, 383320), (58016, 367595), (63584, 335405), (67081, 317920), (69545, 306656), (72520, 294076), (73519, 290080), (76664, 278180), (79480, 268324), (95830, 222544), (97363, 219040), (109520, 194726), (111272, 191660), (134162, 158960), (139090, 153328), (145040, 147038)]