21901440

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 256

約数和(自身を含む): 81959040

約数和(自身を除く): 60057600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 32, 33, 34, 40, 44, 48, 51, 55, 60, 61, 64, 66, 68, 80, 85, 88, 96, 102, 110, 120, 122, 128, 132, 136, 160, 165, 170, 176, 183, 187, 192, 204, 220, 240, 244, 255, 264, 272, 305, 320, 330, 340, 352, 366, 374, 384, 408, 440, 480, 488, 510, 528, 544, 561, 610, 640, 660, 671, 680, 704, 732, 748, 816, 880, 915, 935, 960, 976, 1020, 1037, 1056, 1088, 1122, 1220, 1320, 1342, 1360, 1408, 1464, 1496, 1632, 1760, 1830, 1870, 1920, 1952, 2013, 2040, 2074, 2112, 2176, 2244, 2440, 2640, 2684, 2720, 2805, 2928, 2992, 3111, 3264, 3355, 3520, 3660, 3740, 3904, 4026, 4080, 4148, 4224, 4488, 4880, 5185, 5280, 5368, 5440, 5610, 5856, 5984, 6222, 6528, 6710, 7040, 7320, 7480, 7808, 8052, 8160, 8296, 8976, 9760, 10065, 10370, 10560, 10736, 10880, 11220, 11407, 11712, 11968, 12444, 13420, 14640, 14960, 15555, 16104, 16320, 16592, 17952, 19520, 20130, 20740, 21120, 21472, 22440, 22814, 23424, 23936, 24888, 26840, 29280, 29920, 31110, 32208, 32640, 33184, 34221, 35904, 39040, 40260, 41480, 42944, 44880, 45628, 49776, 53680, 57035, 58560, 59840, 62220, 64416, 66368, 68442, 71808, 80520, 82960, 85888, 89760, 91256, 99552, 107360, 114070, 117120, 119680, 124440, 128832, 132736, 136884, 161040, 165920, 171105, 179520, 182512, 199104, 214720, 228140, 248880, 257664, 273768, 322080, 331840, 342210, 359040, 365024, 398208, 429440, 456280, 497760, 547536, 644160, 663680, 684420, 730048, 912560, 995520, 1095072, 1288320, 1368840, 1460096, 1825120, 1991040, 2190144, 2737680, 3650240, 4380288, 5475360, 7300480, 10950720, 21901440]

約数ペア:

[(1, 21901440), (2, 10950720), (3, 7300480), (4, 5475360), (5, 4380288), (6, 3650240), (8, 2737680), (10, 2190144), (11, 1991040), (12, 1825120), (15, 1460096), (16, 1368840), (17, 1288320), (20, 1095072), (22, 995520), (24, 912560), (30, 730048), (32, 684420), (33, 663680), (34, 644160), (40, 547536), (44, 497760), (48, 456280), (51, 429440), (55, 398208), (60, 365024), (61, 359040), (64, 342210), (66, 331840), (68, 322080), (80, 273768), (85, 257664), (88, 248880), (96, 228140), (102, 214720), (110, 199104), (120, 182512), (122, 179520), (128, 171105), (132, 165920), (136, 161040), (160, 136884), (165, 132736), (170, 128832), (176, 124440), (183, 119680), (187, 117120), (192, 114070), (204, 107360), (220, 99552), (240, 91256), (244, 89760), (255, 85888), (264, 82960), (272, 80520), (305, 71808), (320, 68442), (330, 66368), (340, 64416), (352, 62220), (366, 59840), (374, 58560), (384, 57035), (408, 53680), (440, 49776), (480, 45628), (488, 44880), (510, 42944), (528, 41480), (544, 40260), (561, 39040), (610, 35904), (640, 34221), (660, 33184), (671, 32640), (680, 32208), (704, 31110), (732, 29920), (748, 29280), (816, 26840), (880, 24888), (915, 23936), (935, 23424), (960, 22814), (976, 22440), (1020, 21472), (1037, 21120), (1056, 20740), (1088, 20130), (1122, 19520), (1220, 17952), (1320, 16592), (1342, 16320), (1360, 16104), (1408, 15555), (1464, 14960), (1496, 14640), (1632, 13420), (1760, 12444), (1830, 11968), (1870, 11712), (1920, 11407), (1952, 11220), (2013, 10880), (2040, 10736), (2074, 10560), (2112, 10370), (2176, 10065), (2244, 9760), (2440, 8976), (2640, 8296), (2684, 8160), (2720, 8052), (2805, 7808), (2928, 7480), (2992, 7320), (3111, 7040), (3264, 6710), (3355, 6528), (3520, 6222), (3660, 5984), (3740, 5856), (3904, 5610), (4026, 5440), (4080, 5368), (4148, 5280), (4224, 5185), (4488, 4880)]