639661440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1041

約数の個数: 256

約数和(自身を含む): 2298378240

約数和(自身を除く): 1658716800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 31, 32, 33, 40, 44, 48, 55, 60, 62, 64, 66, 80, 88, 93, 96, 110, 120, 124, 128, 132, 155, 160, 165, 176, 186, 192, 220, 240, 248, 264, 310, 320, 330, 341, 352, 372, 384, 440, 465, 480, 496, 528, 620, 640, 660, 682, 704, 744, 880, 930, 960, 977, 992, 1023, 1056, 1240, 1320, 1364, 1408, 1488, 1705, 1760, 1860, 1920, 1954, 1984, 2046, 2112, 2480, 2640, 2728, 2931, 2976, 3410, 3520, 3720, 3908, 3968, 4092, 4224, 4885, 4960, 5115, 5280, 5456, 5862, 5952, 6820, 7040, 7440, 7816, 8184, 9770, 9920, 10230, 10560, 10747, 10912, 11724, 11904, 13640, 14655, 14880, 15632, 16368, 19540, 19840, 20460, 21120, 21494, 21824, 23448, 27280, 29310, 29760, 30287, 31264, 32241, 32736, 39080, 40920, 42988, 43648, 46896, 53735, 54560, 58620, 59520, 60574, 62528, 64482, 65472, 78160, 81840, 85976, 90861, 93792, 107470, 109120, 117240, 121148, 125056, 128964, 130944, 151435, 156320, 161205, 163680, 171952, 181722, 187584, 214940, 218240, 234480, 242296, 257928, 302870, 312640, 322410, 327360, 333157, 343904, 363444, 375168, 429880, 454305, 468960, 484592, 515856, 605740, 625280, 644820, 654720, 666314, 687808, 726888, 859760, 908610, 937920, 969184, 999471, 1031712, 1211480, 1289640, 1332628, 1375616, 1453776, 1665785, 1719520, 1817220, 1875840, 1938368, 1998942, 2063424, 2422960, 2579280, 2665256, 2907552, 3331570, 3439040, 3634440, 3876736, 3997884, 4126848, 4845920, 4997355, 5158560, 5330512, 5815104, 6663140, 6878080, 7268880, 7995768, 9691840, 9994710, 10317120, 10661024, 11630208, 13326280, 14537760, 15991536, 19383680, 19989420, 20634240, 21322048, 26652560, 29075520, 31983072, 39978840, 42644096, 53305120, 58151040, 63966144, 79957680, 106610240, 127932288, 159915360, 213220480, 319830720, 639661440]

約数ペア:

[(1, 639661440), (2, 319830720), (3, 213220480), (4, 159915360), (5, 127932288), (6, 106610240), (8, 79957680), (10, 63966144), (11, 58151040), (12, 53305120), (15, 42644096), (16, 39978840), (20, 31983072), (22, 29075520), (24, 26652560), (30, 21322048), (31, 20634240), (32, 19989420), (33, 19383680), (40, 15991536), (44, 14537760), (48, 13326280), (55, 11630208), (60, 10661024), (62, 10317120), (64, 9994710), (66, 9691840), (80, 7995768), (88, 7268880), (93, 6878080), (96, 6663140), (110, 5815104), (120, 5330512), (124, 5158560), (128, 4997355), (132, 4845920), (155, 4126848), (160, 3997884), (165, 3876736), (176, 3634440), (186, 3439040), (192, 3331570), (220, 2907552), (240, 2665256), (248, 2579280), (264, 2422960), (310, 2063424), (320, 1998942), (330, 1938368), (341, 1875840), (352, 1817220), (372, 1719520), (384, 1665785), (440, 1453776), (465, 1375616), (480, 1332628), (496, 1289640), (528, 1211480), (620, 1031712), (640, 999471), (660, 969184), (682, 937920), (704, 908610), (744, 859760), (880, 726888), (930, 687808), (960, 666314), (977, 654720), (992, 644820), (1023, 625280), (1056, 605740), (1240, 515856), (1320, 484592), (1364, 468960), (1408, 454305), (1488, 429880), (1705, 375168), (1760, 363444), (1860, 343904), (1920, 333157), (1954, 327360), (1984, 322410), (2046, 312640), (2112, 302870), (2480, 257928), (2640, 242296), (2728, 234480), (2931, 218240), (2976, 214940), (3410, 187584), (3520, 181722), (3720, 171952), (3908, 163680), (3968, 161205), (4092, 156320), (4224, 151435), (4885, 130944), (4960, 128964), (5115, 125056), (5280, 121148), (5456, 117240), (5862, 109120), (5952, 107470), (6820, 93792), (7040, 90861), (7440, 85976), (7816, 81840), (8184, 78160), (9770, 65472), (9920, 64482), (10230, 62528), (10560, 60574), (10747, 59520), (10912, 58620), (11724, 54560), (11904, 53735), (13640, 46896), (14655, 43648), (14880, 42988), (15632, 40920), (16368, 39080), (19540, 32736), (19840, 32241), (20460, 31264), (21120, 30287), (21494, 29760), (21824, 29310), (23448, 27280)]