81521568

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:467

約数の個数: 144

約数和(自身を含む): 250338816

約数和(自身を除く): 168817248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 31, 32, 36, 46, 48, 62, 69, 72, 92, 93, 96, 124, 138, 144, 184, 186, 207, 248, 276, 279, 288, 368, 372, 397, 414, 496, 552, 558, 713, 736, 744, 794, 828, 992, 1104, 1116, 1191, 1426, 1488, 1588, 1656, 2139, 2208, 2232, 2382, 2852, 2976, 3176, 3312, 3573, 4278, 4464, 4764, 5704, 6352, 6417, 6624, 7146, 8556, 8928, 9131, 9528, 11408, 12307, 12704, 12834, 14292, 17112, 18262, 19056, 22816, 24614, 25668, 27393, 28584, 34224, 36524, 36921, 38112, 49228, 51336, 54786, 57168, 68448, 73048, 73842, 82179, 98456, 102672, 109572, 110763, 114336, 146096, 147684, 164358, 196912, 205344, 219144, 221526, 283061, 292192, 295368, 328716, 393824, 438288, 443052, 566122, 590736, 657432, 849183, 876576, 886104, 1132244, 1181472, 1314864, 1698366, 1772208, 2264488, 2547549, 2629728, 3396732, 3544416, 4528976, 5095098, 6793464, 9057952, 10190196, 13586928, 20380392, 27173856, 40760784, 81521568]

約数ペア:

[(1, 81521568), (2, 40760784), (3, 27173856), (4, 20380392), (6, 13586928), (8, 10190196), (9, 9057952), (12, 6793464), (16, 5095098), (18, 4528976), (23, 3544416), (24, 3396732), (31, 2629728), (32, 2547549), (36, 2264488), (46, 1772208), (48, 1698366), (62, 1314864), (69, 1181472), (72, 1132244), (92, 886104), (93, 876576), (96, 849183), (124, 657432), (138, 590736), (144, 566122), (184, 443052), (186, 438288), (207, 393824), (248, 328716), (276, 295368), (279, 292192), (288, 283061), (368, 221526), (372, 219144), (397, 205344), (414, 196912), (496, 164358), (552, 147684), (558, 146096), (713, 114336), (736, 110763), (744, 109572), (794, 102672), (828, 98456), (992, 82179), (1104, 73842), (1116, 73048), (1191, 68448), (1426, 57168), (1488, 54786), (1588, 51336), (1656, 49228), (2139, 38112), (2208, 36921), (2232, 36524), (2382, 34224), (2852, 28584), (2976, 27393), (3176, 25668), (3312, 24614), (3573, 22816), (4278, 19056), (4464, 18262), (4764, 17112), (5704, 14292), (6352, 12834), (6417, 12704), (6624, 12307), (7146, 11408), (8556, 9528), (8928, 9131)]