81362040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{719}}^1$

素因数の和:797

約数の個数: 128

約数和(自身を含む): 261273600

約数和(自身を除く): 179911560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 41, 46, 60, 69, 82, 92, 115, 120, 123, 138, 164, 184, 205, 230, 246, 276, 328, 345, 410, 460, 492, 552, 615, 690, 719, 820, 920, 943, 984, 1230, 1380, 1438, 1640, 1886, 2157, 2460, 2760, 2829, 2876, 3595, 3772, 4314, 4715, 4920, 5658, 5752, 7190, 7544, 8628, 9430, 10785, 11316, 14145, 14380, 16537, 17256, 18860, 21570, 22632, 28290, 28760, 29479, 33074, 37720, 43140, 49611, 56580, 58958, 66148, 82685, 86280, 88437, 99222, 113160, 117916, 132296, 147395, 165370, 176874, 198444, 235832, 248055, 294790, 330740, 353748, 396888, 442185, 496110, 589580, 661480, 678017, 707496, 884370, 992220, 1179160, 1356034, 1768740, 1984440, 2034051, 2712068, 3390085, 3537480, 4068102, 5424136, 6780170, 8136204, 10170255, 13560340, 16272408, 20340510, 27120680, 40681020, 81362040]

約数ペア:

[(1, 81362040), (2, 40681020), (3, 27120680), (4, 20340510), (5, 16272408), (6, 13560340), (8, 10170255), (10, 8136204), (12, 6780170), (15, 5424136), (20, 4068102), (23, 3537480), (24, 3390085), (30, 2712068), (40, 2034051), (41, 1984440), (46, 1768740), (60, 1356034), (69, 1179160), (82, 992220), (92, 884370), (115, 707496), (120, 678017), (123, 661480), (138, 589580), (164, 496110), (184, 442185), (205, 396888), (230, 353748), (246, 330740), (276, 294790), (328, 248055), (345, 235832), (410, 198444), (460, 176874), (492, 165370), (552, 147395), (615, 132296), (690, 117916), (719, 113160), (820, 99222), (920, 88437), (943, 86280), (984, 82685), (1230, 66148), (1380, 58958), (1438, 56580), (1640, 49611), (1886, 43140), (2157, 37720), (2460, 33074), (2760, 29479), (2829, 28760), (2876, 28290), (3595, 22632), (3772, 21570), (4314, 18860), (4715, 17256), (4920, 16537), (5658, 14380), (5752, 14145), (7190, 11316), (7544, 10785), (8628, 9430)]