81689904

素因数分解:

$2^4\times 3^3\times {\mathrm{263}}^1\times {\mathrm{719}}^1$

素因数の和:999

約数の個数: 80

約数和(自身を含む): 235699200

約数和(自身を除く): 154009296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 263, 432, 526, 719, 789, 1052, 1438, 1578, 2104, 2157, 2367, 2876, 3156, 4208, 4314, 4734, 5752, 6312, 6471, 7101, 8628, 9468, 11504, 12624, 12942, 14202, 17256, 18936, 19413, 25884, 28404, 34512, 37872, 38826, 51768, 56808, 77652, 103536, 113616, 155304, 189097, 310608, 378194, 567291, 756388, 1134582, 1512776, 1701873, 2269164, 3025552, 3403746, 4538328, 5105619, 6807492, 9076656, 10211238, 13614984, 20422476, 27229968, 40844952, 81689904]

約数ペア:

[(1, 81689904), (2, 40844952), (3, 27229968), (4, 20422476), (6, 13614984), (8, 10211238), (9, 9076656), (12, 6807492), (16, 5105619), (18, 4538328), (24, 3403746), (27, 3025552), (36, 2269164), (48, 1701873), (54, 1512776), (72, 1134582), (108, 756388), (144, 567291), (216, 378194), (263, 310608), (432, 189097), (526, 155304), (719, 113616), (789, 103536), (1052, 77652), (1438, 56808), (1578, 51768), (2104, 38826), (2157, 37872), (2367, 34512), (2876, 28404), (3156, 25884), (4208, 19413), (4314, 18936), (4734, 17256), (5752, 14202), (6312, 12942), (6471, 12624), (7101, 11504), (8628, 9468)]