128217856

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{653}}^1$

素因数の和:741

約数の個数: 72

約数和(自身を含む): 280722960

約数和(自身を除く): 152505104

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 59, 64, 104, 118, 128, 208, 236, 256, 416, 472, 653, 767, 832, 944, 1306, 1534, 1664, 1888, 2612, 3068, 3328, 3776, 5224, 6136, 7552, 8489, 10448, 12272, 15104, 16978, 20896, 24544, 33956, 38527, 41792, 49088, 67912, 77054, 83584, 98176, 135824, 154108, 167168, 196352, 271648, 308216, 500851, 543296, 616432, 1001702, 1086592, 1232864, 2003404, 2173184, 2465728, 4006808, 4931456, 8013616, 9862912, 16027232, 32054464, 64108928, 128217856]

約数ペア:

[(1, 128217856), (2, 64108928), (4, 32054464), (8, 16027232), (13, 9862912), (16, 8013616), (26, 4931456), (32, 4006808), (52, 2465728), (59, 2173184), (64, 2003404), (104, 1232864), (118, 1086592), (128, 1001702), (208, 616432), (236, 543296), (256, 500851), (416, 308216), (472, 271648), (653, 196352), (767, 167168), (832, 154108), (944, 135824), (1306, 98176), (1534, 83584), (1664, 77054), (1888, 67912), (2612, 49088), (3068, 41792), (3328, 38527), (3776, 33956), (5224, 24544), (6136, 20896), (7552, 16978), (8489, 15104), (10448, 12272)]