20431728

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:267

約数の個数: 120

約数和(自身を含む): 61900800

約数和(自身を除く): 41469072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 31, 36, 46, 48, 62, 69, 72, 92, 93, 124, 138, 144, 184, 186, 199, 207, 248, 276, 279, 368, 372, 398, 414, 496, 552, 558, 597, 713, 744, 796, 828, 1104, 1116, 1194, 1426, 1488, 1592, 1656, 1791, 2139, 2232, 2388, 2852, 3184, 3312, 3582, 4278, 4464, 4577, 4776, 5704, 6169, 6417, 7164, 8556, 9154, 9552, 11408, 12338, 12834, 13731, 14328, 17112, 18308, 18507, 24676, 25668, 27462, 28656, 34224, 36616, 37014, 41193, 49352, 51336, 54924, 55521, 73232, 74028, 82386, 98704, 102672, 109848, 111042, 141887, 148056, 164772, 219696, 222084, 283774, 296112, 329544, 425661, 444168, 567548, 659088, 851322, 888336, 1135096, 1276983, 1702644, 2270192, 2553966, 3405288, 5107932, 6810576, 10215864, 20431728]

約数ペア:

[(1, 20431728), (2, 10215864), (3, 6810576), (4, 5107932), (6, 3405288), (8, 2553966), (9, 2270192), (12, 1702644), (16, 1276983), (18, 1135096), (23, 888336), (24, 851322), (31, 659088), (36, 567548), (46, 444168), (48, 425661), (62, 329544), (69, 296112), (72, 283774), (92, 222084), (93, 219696), (124, 164772), (138, 148056), (144, 141887), (184, 111042), (186, 109848), (199, 102672), (207, 98704), (248, 82386), (276, 74028), (279, 73232), (368, 55521), (372, 54924), (398, 51336), (414, 49352), (496, 41193), (552, 37014), (558, 36616), (597, 34224), (713, 28656), (744, 27462), (796, 25668), (828, 24676), (1104, 18507), (1116, 18308), (1194, 17112), (1426, 14328), (1488, 13731), (1592, 12834), (1656, 12338), (1791, 11408), (2139, 9552), (2232, 9154), (2388, 8556), (2852, 7164), (3184, 6417), (3312, 6169), (3582, 5704), (4278, 4776), (4464, 4577)]