81489540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:178

約数の個数: 192

約数和(自身を含む): 264757248

約数和(自身を除く): 183267708

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 37, 44, 47, 55, 60, 66, 71, 74, 94, 110, 111, 132, 141, 142, 148, 165, 185, 188, 213, 220, 222, 235, 282, 284, 330, 355, 370, 407, 426, 444, 470, 517, 555, 564, 660, 705, 710, 740, 781, 814, 852, 940, 1034, 1065, 1110, 1221, 1410, 1420, 1551, 1562, 1628, 1739, 2035, 2068, 2130, 2220, 2343, 2442, 2585, 2627, 2820, 3102, 3124, 3337, 3478, 3905, 4070, 4260, 4686, 4884, 5170, 5217, 5254, 6105, 6204, 6674, 6956, 7755, 7810, 7881, 8140, 8695, 9372, 10011, 10340, 10434, 10508, 11715, 12210, 13135, 13348, 15510, 15620, 15762, 16685, 17390, 19129, 20022, 20868, 23430, 24420, 26085, 26270, 28897, 31020, 31524, 33370, 34780, 36707, 38258, 39405, 40044, 46860, 50055, 52170, 52540, 57387, 57794, 66740, 73414, 76516, 78810, 86691, 95645, 100110, 104340, 110121, 114774, 115588, 123469, 144485, 146828, 157620, 173382, 183535, 191290, 200220, 220242, 229548, 246938, 286935, 288970, 346764, 367070, 370407, 382580, 433455, 440484, 493876, 550605, 573870, 577940, 617345, 734140, 740814, 866910, 1101210, 1147740, 1234690, 1358159, 1481628, 1733820, 1852035, 2202420, 2469380, 2716318, 3704070, 4074477, 5432636, 6790795, 7408140, 8148954, 13581590, 16297908, 20372385, 27163180, 40744770, 81489540]

約数ペア:

[(1, 81489540), (2, 40744770), (3, 27163180), (4, 20372385), (5, 16297908), (6, 13581590), (10, 8148954), (11, 7408140), (12, 6790795), (15, 5432636), (20, 4074477), (22, 3704070), (30, 2716318), (33, 2469380), (37, 2202420), (44, 1852035), (47, 1733820), (55, 1481628), (60, 1358159), (66, 1234690), (71, 1147740), (74, 1101210), (94, 866910), (110, 740814), (111, 734140), (132, 617345), (141, 577940), (142, 573870), (148, 550605), (165, 493876), (185, 440484), (188, 433455), (213, 382580), (220, 370407), (222, 367070), (235, 346764), (282, 288970), (284, 286935), (330, 246938), (355, 229548), (370, 220242), (407, 200220), (426, 191290), (444, 183535), (470, 173382), (517, 157620), (555, 146828), (564, 144485), (660, 123469), (705, 115588), (710, 114774), (740, 110121), (781, 104340), (814, 100110), (852, 95645), (940, 86691), (1034, 78810), (1065, 76516), (1110, 73414), (1221, 66740), (1410, 57794), (1420, 57387), (1551, 52540), (1562, 52170), (1628, 50055), (1739, 46860), (2035, 40044), (2068, 39405), (2130, 38258), (2220, 36707), (2343, 34780), (2442, 33370), (2585, 31524), (2627, 31020), (2820, 28897), (3102, 26270), (3124, 26085), (3337, 24420), (3478, 23430), (3905, 20868), (4070, 20022), (4260, 19129), (4686, 17390), (4884, 16685), (5170, 15762), (5217, 15620), (5254, 15510), (6105, 13348), (6204, 13135), (6674, 12210), (6956, 11715), (7755, 10508), (7810, 10434), (7881, 10340), (8140, 10011), (8695, 9372)]