256313760

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:447

約数の個数: 192

約数和(自身を含む): 866121984

約数和(自身を除く): 609808224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 101, 102, 120, 136, 160, 170, 202, 204, 240, 255, 272, 303, 311, 340, 404, 408, 480, 505, 510, 544, 606, 622, 680, 808, 816, 933, 1010, 1020, 1212, 1244, 1360, 1515, 1555, 1616, 1632, 1717, 1866, 2020, 2040, 2424, 2488, 2720, 3030, 3110, 3232, 3434, 3732, 4040, 4080, 4665, 4848, 4976, 5151, 5287, 6060, 6220, 6868, 7464, 8080, 8160, 8585, 9330, 9696, 9952, 10302, 10574, 12120, 12440, 13736, 14928, 15861, 16160, 17170, 18660, 20604, 21148, 24240, 24880, 25755, 26435, 27472, 29856, 31411, 31722, 34340, 37320, 41208, 42296, 48480, 49760, 51510, 52870, 54944, 62822, 63444, 68680, 74640, 79305, 82416, 84592, 94233, 103020, 105740, 125644, 126888, 137360, 149280, 157055, 158610, 164832, 169184, 188466, 206040, 211480, 251288, 253776, 274720, 314110, 317220, 376932, 412080, 422960, 471165, 502576, 507552, 533987, 628220, 634440, 753864, 824160, 845920, 942330, 1005152, 1067974, 1256440, 1268880, 1507728, 1601961, 1884660, 2135948, 2512880, 2537760, 2669935, 3015456, 3203922, 3769320, 4271896, 5025760, 5339870, 6407844, 7538640, 8009805, 8543792, 10679740, 12815688, 15077280, 16019610, 17087584, 21359480, 25631376, 32039220, 42718960, 51262752, 64078440, 85437920, 128156880, 256313760]

約数ペア:

[(1, 256313760), (2, 128156880), (3, 85437920), (4, 64078440), (5, 51262752), (6, 42718960), (8, 32039220), (10, 25631376), (12, 21359480), (15, 17087584), (16, 16019610), (17, 15077280), (20, 12815688), (24, 10679740), (30, 8543792), (32, 8009805), (34, 7538640), (40, 6407844), (48, 5339870), (51, 5025760), (60, 4271896), (68, 3769320), (80, 3203922), (85, 3015456), (96, 2669935), (101, 2537760), (102, 2512880), (120, 2135948), (136, 1884660), (160, 1601961), (170, 1507728), (202, 1268880), (204, 1256440), (240, 1067974), (255, 1005152), (272, 942330), (303, 845920), (311, 824160), (340, 753864), (404, 634440), (408, 628220), (480, 533987), (505, 507552), (510, 502576), (544, 471165), (606, 422960), (622, 412080), (680, 376932), (808, 317220), (816, 314110), (933, 274720), (1010, 253776), (1020, 251288), (1212, 211480), (1244, 206040), (1360, 188466), (1515, 169184), (1555, 164832), (1616, 158610), (1632, 157055), (1717, 149280), (1866, 137360), (2020, 126888), (2040, 125644), (2424, 105740), (2488, 103020), (2720, 94233), (3030, 84592), (3110, 82416), (3232, 79305), (3434, 74640), (3732, 68680), (4040, 63444), (4080, 62822), (4665, 54944), (4848, 52870), (4976, 51510), (5151, 49760), (5287, 48480), (6060, 42296), (6220, 41208), (6868, 37320), (7464, 34340), (8080, 31722), (8160, 31411), (8585, 29856), (9330, 27472), (9696, 26435), (9952, 25755), (10302, 24880), (10574, 24240), (12120, 21148), (12440, 20604), (13736, 18660), (14928, 17170), (15861, 16160)]