81004728

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:397

約数の個数: 128

約数和(自身を含む): 248209920

約数和(自身を除く): 167205192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 113, 119, 136, 168, 204, 226, 238, 251, 339, 357, 408, 452, 476, 502, 678, 714, 753, 791, 904, 952, 1004, 1356, 1428, 1506, 1582, 1757, 1921, 2008, 2373, 2712, 2856, 3012, 3164, 3514, 3842, 4267, 4746, 5271, 5763, 6024, 6328, 7028, 7684, 8534, 9492, 10542, 11526, 12801, 13447, 14056, 15368, 17068, 18984, 21084, 23052, 25602, 26894, 28363, 29869, 34136, 40341, 42168, 46104, 51204, 53788, 56726, 59738, 80682, 85089, 89607, 102408, 107576, 113452, 119476, 161364, 170178, 179214, 198541, 226904, 238952, 322728, 340356, 358428, 397082, 482171, 595623, 680712, 716856, 794164, 964342, 1191246, 1446513, 1588328, 1928684, 2382492, 2893026, 3375197, 3857368, 4764984, 5786052, 6750394, 10125591, 11572104, 13500788, 20251182, 27001576, 40502364, 81004728]

約数ペア:

[(1, 81004728), (2, 40502364), (3, 27001576), (4, 20251182), (6, 13500788), (7, 11572104), (8, 10125591), (12, 6750394), (14, 5786052), (17, 4764984), (21, 3857368), (24, 3375197), (28, 2893026), (34, 2382492), (42, 1928684), (51, 1588328), (56, 1446513), (68, 1191246), (84, 964342), (102, 794164), (113, 716856), (119, 680712), (136, 595623), (168, 482171), (204, 397082), (226, 358428), (238, 340356), (251, 322728), (339, 238952), (357, 226904), (408, 198541), (452, 179214), (476, 170178), (502, 161364), (678, 119476), (714, 113452), (753, 107576), (791, 102408), (904, 89607), (952, 85089), (1004, 80682), (1356, 59738), (1428, 56726), (1506, 53788), (1582, 51204), (1757, 46104), (1921, 42168), (2008, 40341), (2373, 34136), (2712, 29869), (2856, 28363), (3012, 26894), (3164, 25602), (3514, 23052), (3842, 21084), (4267, 18984), (4746, 17068), (5271, 15368), (5763, 14056), (6024, 13447), (6328, 12801), (7028, 11526), (7684, 10542), (8534, 9492)]