256642560

素因数分解:

$2^9\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 320

約数和(自身を含む): 942796800

約数和(自身を除く): 686154240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 47, 48, 54, 60, 64, 72, 79, 80, 90, 94, 96, 108, 120, 128, 135, 141, 144, 158, 160, 180, 188, 192, 216, 235, 237, 240, 256, 270, 282, 288, 316, 320, 360, 376, 384, 395, 423, 432, 470, 474, 480, 512, 540, 564, 576, 632, 640, 705, 711, 720, 752, 768, 790, 846, 864, 940, 948, 960, 1080, 1128, 1152, 1185, 1264, 1269, 1280, 1410, 1422, 1440, 1504, 1536, 1580, 1692, 1728, 1880, 1896, 1920, 2115, 2133, 2160, 2256, 2304, 2370, 2528, 2538, 2560, 2820, 2844, 2880, 3008, 3160, 3384, 3456, 3555, 3713, 3760, 3792, 3840, 4230, 4266, 4320, 4512, 4608, 4740, 5056, 5076, 5640, 5688, 5760, 6016, 6320, 6345, 6768, 6912, 7110, 7426, 7520, 7584, 7680, 8460, 8532, 8640, 9024, 9480, 10112, 10152, 10665, 11139, 11280, 11376, 11520, 12032, 12640, 12690, 13536, 13824, 14220, 14852, 15040, 15168, 16920, 17064, 17280, 18048, 18565, 18960, 20224, 20304, 21330, 22278, 22560, 22752, 23040, 24064, 25280, 25380, 27072, 28440, 29704, 30080, 30336, 33417, 33840, 34128, 34560, 36096, 37130, 37920, 40448, 40608, 42660, 44556, 45120, 45504, 50560, 50760, 54144, 55695, 56880, 59408, 60160, 60672, 66834, 67680, 68256, 69120, 72192, 74260, 75840, 81216, 85320, 89112, 90240, 91008, 100251, 101120, 101520, 108288, 111390, 113760, 118816, 120320, 121344, 133668, 135360, 136512, 148520, 151680, 162432, 167085, 170640, 178224, 180480, 182016, 200502, 202240, 203040, 216576, 222780, 227520, 237632, 267336, 270720, 273024, 297040, 303360, 324864, 334170, 341280, 356448, 360960, 364032, 401004, 406080, 445560, 455040, 475264, 501255, 534672, 541440, 546048, 594080, 606720, 649728, 668340, 682560, 712896, 802008, 812160, 891120, 910080, 950528, 1002510, 1069344, 1082880, 1092096, 1188160, 1336680, 1365120, 1425792, 1604016, 1624320, 1782240, 1820160, 1901056, 2005020, 2138688, 2376320, 2673360, 2730240, 2851584, 3208032, 3248640, 3564480, 4010040, 4277376, 4752640, 5346720, 5460480, 5703168, 6416064, 7128960, 8020080, 8554752, 9505280, 10693440, 12832128, 14257920, 16040160, 17109504, 21386880, 25664256, 28515840, 32080320, 42773760, 51328512, 64160640, 85547520, 128321280, 256642560]

約数ペア:

[(1, 256642560), (2, 128321280), (3, 85547520), (4, 64160640), (5, 51328512), (6, 42773760), (8, 32080320), (9, 28515840), (10, 25664256), (12, 21386880), (15, 17109504), (16, 16040160), (18, 14257920), (20, 12832128), (24, 10693440), (27, 9505280), (30, 8554752), (32, 8020080), (36, 7128960), (40, 6416064), (45, 5703168), (47, 5460480), (48, 5346720), (54, 4752640), (60, 4277376), (64, 4010040), (72, 3564480), (79, 3248640), (80, 3208032), (90, 2851584), (94, 2730240), (96, 2673360), (108, 2376320), (120, 2138688), (128, 2005020), (135, 1901056), (141, 1820160), (144, 1782240), (158, 1624320), (160, 1604016), (180, 1425792), (188, 1365120), (192, 1336680), (216, 1188160), (235, 1092096), (237, 1082880), (240, 1069344), (256, 1002510), (270, 950528), (282, 910080), (288, 891120), (316, 812160), (320, 802008), (360, 712896), (376, 682560), (384, 668340), (395, 649728), (423, 606720), (432, 594080), (470, 546048), (474, 541440), (480, 534672), (512, 501255), (540, 475264), (564, 455040), (576, 445560), (632, 406080), (640, 401004), (705, 364032), (711, 360960), (720, 356448), (752, 341280), (768, 334170), (790, 324864), (846, 303360), (864, 297040), (940, 273024), (948, 270720), (960, 267336), (1080, 237632), (1128, 227520), (1152, 222780), (1185, 216576), (1264, 203040), (1269, 202240), (1280, 200502), (1410, 182016), (1422, 180480), (1440, 178224), (1504, 170640), (1536, 167085), (1580, 162432), (1692, 151680), (1728, 148520), (1880, 136512), (1896, 135360), (1920, 133668), (2115, 121344), (2133, 120320), (2160, 118816), (2256, 113760), (2304, 111390), (2370, 108288), (2528, 101520), (2538, 101120), (2560, 100251), (2820, 91008), (2844, 90240), (2880, 89112), (3008, 85320), (3160, 81216), (3384, 75840), (3456, 74260), (3555, 72192), (3713, 69120), (3760, 68256), (3792, 67680), (3840, 66834), (4230, 60672), (4266, 60160), (4320, 59408), (4512, 56880), (4608, 55695), (4740, 54144), (5056, 50760), (5076, 50560), (5640, 45504), (5688, 45120), (5760, 44556), (6016, 42660), (6320, 40608), (6345, 40448), (6768, 37920), (6912, 37130), (7110, 36096), (7426, 34560), (7520, 34128), (7584, 33840), (7680, 33417), (8460, 30336), (8532, 30080), (8640, 29704), (9024, 28440), (9480, 27072), (10112, 25380), (10152, 25280), (10665, 24064), (11139, 23040), (11280, 22752), (11376, 22560), (11520, 22278), (12032, 21330), (12640, 20304), (12690, 20224), (13536, 18960), (13824, 18565), (14220, 18048), (14852, 17280), (15040, 17064), (15168, 16920)]