21330882560

素因数分解:

$2^{12}\times 5^1\times {\mathrm{13}}^2\times {\mathrm{6163}}^1$

素因数の和:6218

約数の個数: 156

約数和(自身を含む): 55437277752

約数和(自身を除く): 34106395192

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 338, 416, 512, 520, 640, 676, 832, 845, 1024, 1040, 1280, 1352, 1664, 1690, 2048, 2080, 2560, 2704, 3328, 3380, 4096, 4160, 5120, 5408, 6163, 6656, 6760, 8320, 10240, 10816, 12326, 13312, 13520, 16640, 20480, 21632, 24652, 26624, 27040, 30815, 33280, 43264, 49304, 53248, 54080, 61630, 66560, 80119, 86528, 98608, 108160, 123260, 133120, 160238, 173056, 197216, 216320, 246520, 266240, 320476, 346112, 394432, 400595, 432640, 493040, 640952, 692224, 788864, 801190, 865280, 986080, 1041547, 1281904, 1577728, 1602380, 1730560, 1972160, 2083094, 2563808, 3155456, 3204760, 3461120, 3944320, 4166188, 5127616, 5207735, 6310912, 6409520, 7888640, 8332376, 10255232, 10415470, 12621824, 12819040, 15777280, 16664752, 20510464, 20830940, 25243648, 25638080, 31554560, 33329504, 41020928, 41661880, 51276160, 63109120, 66659008, 82041856, 83323760, 102552320, 126218240, 133318016, 164083712, 166647520, 205104640, 266636032, 328167424, 333295040, 410209280, 533272064, 666590080, 820418560, 1066544128, 1333180160, 1640837120, 2133088256, 2666360320, 4266176512, 5332720640, 10665441280, 21330882560]

約数ペア:

[(1, 21330882560), (2, 10665441280), (4, 5332720640), (5, 4266176512), (8, 2666360320), (10, 2133088256), (13, 1640837120), (16, 1333180160), (20, 1066544128), (26, 820418560), (32, 666590080), (40, 533272064), (52, 410209280), (64, 333295040), (65, 328167424), (80, 266636032), (104, 205104640), (128, 166647520), (130, 164083712), (160, 133318016), (169, 126218240), (208, 102552320), (256, 83323760), (260, 82041856), (320, 66659008), (338, 63109120), (416, 51276160), (512, 41661880), (520, 41020928), (640, 33329504), (676, 31554560), (832, 25638080), (845, 25243648), (1024, 20830940), (1040, 20510464), (1280, 16664752), (1352, 15777280), (1664, 12819040), (1690, 12621824), (2048, 10415470), (2080, 10255232), (2560, 8332376), (2704, 7888640), (3328, 6409520), (3380, 6310912), (4096, 5207735), (4160, 5127616), (5120, 4166188), (5408, 3944320), (6163, 3461120), (6656, 3204760), (6760, 3155456), (8320, 2563808), (10240, 2083094), (10816, 1972160), (12326, 1730560), (13312, 1602380), (13520, 1577728), (16640, 1281904), (20480, 1041547), (21632, 986080), (24652, 865280), (26624, 801190), (27040, 788864), (30815, 692224), (33280, 640952), (43264, 493040), (49304, 432640), (53248, 400595), (54080, 394432), (61630, 346112), (66560, 320476), (80119, 266240), (86528, 246520), (98608, 216320), (108160, 197216), (123260, 173056), (133120, 160238)]