280770224

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{419}}^1$

素因数の和:658

約数の個数: 80

約数和(自身を含む): 646625280

約数和(自身を除く): 365855056

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 193, 217, 248, 386, 419, 434, 496, 772, 838, 868, 1351, 1544, 1676, 1736, 2702, 2933, 3088, 3352, 3472, 5404, 5866, 5983, 6704, 10808, 11732, 11966, 12989, 21616, 23464, 23932, 25978, 41881, 46928, 47864, 51956, 80867, 83762, 90923, 95728, 103912, 161734, 167524, 181846, 207824, 323468, 335048, 363692, 566069, 646936, 670096, 727384, 1132138, 1293872, 1454768, 2264276, 2506877, 4528552, 5013754, 9057104, 10027508, 17548139, 20055016, 35096278, 40110032, 70192556, 140385112, 280770224]

約数ペア:

[(1, 280770224), (2, 140385112), (4, 70192556), (7, 40110032), (8, 35096278), (14, 20055016), (16, 17548139), (28, 10027508), (31, 9057104), (56, 5013754), (62, 4528552), (112, 2506877), (124, 2264276), (193, 1454768), (217, 1293872), (248, 1132138), (386, 727384), (419, 670096), (434, 646936), (496, 566069), (772, 363692), (838, 335048), (868, 323468), (1351, 207824), (1544, 181846), (1676, 167524), (1736, 161734), (2702, 103912), (2933, 95728), (3088, 90923), (3352, 83762), (3472, 80867), (5404, 51956), (5866, 47864), (5983, 46928), (6704, 41881), (10808, 25978), (11732, 23932), (11966, 23464), (12989, 21616)]