20391696

素因数分解:

$2^4\times 3^3\times {\mathrm{13}}^1\times {\mathrm{3631}}^1$

素因数の和:3661

約数の個数: 80

約数和(自身を含む): 63051520

約数和(自身を除く): 42659824

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 104, 108, 117, 144, 156, 208, 216, 234, 312, 351, 432, 468, 624, 702, 936, 1404, 1872, 2808, 3631, 5616, 7262, 10893, 14524, 21786, 29048, 32679, 43572, 47203, 58096, 65358, 87144, 94406, 98037, 130716, 141609, 174288, 188812, 196074, 261432, 283218, 377624, 392148, 424827, 522864, 566436, 755248, 784296, 849654, 1132872, 1274481, 1568592, 1699308, 2265744, 2548962, 3398616, 5097924, 6797232, 10195848, 20391696]

約数ペア:

[(1, 20391696), (2, 10195848), (3, 6797232), (4, 5097924), (6, 3398616), (8, 2548962), (9, 2265744), (12, 1699308), (13, 1568592), (16, 1274481), (18, 1132872), (24, 849654), (26, 784296), (27, 755248), (36, 566436), (39, 522864), (48, 424827), (52, 392148), (54, 377624), (72, 283218), (78, 261432), (104, 196074), (108, 188812), (117, 174288), (144, 141609), (156, 130716), (208, 98037), (216, 94406), (234, 87144), (312, 65358), (351, 58096), (432, 47203), (468, 43572), (624, 32679), (702, 29048), (936, 21786), (1404, 14524), (1872, 10893), (2808, 7262), (3631, 5616)]