81111072

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:471

約数の個数: 144

約数和(自身を含む): 254070432

約数和(自身を除く): 172959360

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 43, 48, 49, 56, 84, 86, 96, 98, 112, 129, 147, 168, 172, 196, 224, 258, 294, 301, 336, 344, 392, 401, 516, 588, 602, 672, 688, 784, 802, 903, 1032, 1176, 1203, 1204, 1376, 1568, 1604, 1806, 2064, 2107, 2352, 2406, 2408, 2807, 3208, 3612, 4128, 4214, 4704, 4812, 4816, 5614, 6321, 6416, 7224, 8421, 8428, 9624, 9632, 11228, 12642, 12832, 14448, 16842, 16856, 17243, 19248, 19649, 22456, 25284, 28896, 33684, 33712, 34486, 38496, 39298, 44912, 50568, 51729, 58947, 67368, 67424, 68972, 78596, 89824, 101136, 103458, 117894, 120701, 134736, 137944, 157192, 202272, 206916, 235788, 241402, 269472, 275888, 314384, 362103, 413832, 471576, 482804, 551776, 628768, 724206, 827664, 844907, 943152, 965608, 1448412, 1655328, 1689814, 1886304, 1931216, 2534721, 2896824, 3379628, 3862432, 5069442, 5793648, 6759256, 10138884, 11587296, 13518512, 20277768, 27037024, 40555536, 81111072]

約数ペア:

[(1, 81111072), (2, 40555536), (3, 27037024), (4, 20277768), (6, 13518512), (7, 11587296), (8, 10138884), (12, 6759256), (14, 5793648), (16, 5069442), (21, 3862432), (24, 3379628), (28, 2896824), (32, 2534721), (42, 1931216), (43, 1886304), (48, 1689814), (49, 1655328), (56, 1448412), (84, 965608), (86, 943152), (96, 844907), (98, 827664), (112, 724206), (129, 628768), (147, 551776), (168, 482804), (172, 471576), (196, 413832), (224, 362103), (258, 314384), (294, 275888), (301, 269472), (336, 241402), (344, 235788), (392, 206916), (401, 202272), (516, 157192), (588, 137944), (602, 134736), (672, 120701), (688, 117894), (784, 103458), (802, 101136), (903, 89824), (1032, 78596), (1176, 68972), (1203, 67424), (1204, 67368), (1376, 58947), (1568, 51729), (1604, 50568), (1806, 44912), (2064, 39298), (2107, 38496), (2352, 34486), (2406, 33712), (2408, 33684), (2807, 28896), (3208, 25284), (3612, 22456), (4128, 19649), (4214, 19248), (4704, 17243), (4812, 16856), (4816, 16842), (5614, 14448), (6321, 12832), (6416, 12642), (7224, 11228), (8421, 9632), (8428, 9624)]