128406208

素因数分解:

$2^6\times 7^1\times {\mathrm{443}}^1\times {\mathrm{647}}^1$

素因数の和:1109

約数の個数: 56

約数和(自身を含む): 292315392

約数和(自身を除く): 163909184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 443, 448, 647, 886, 1294, 1772, 2588, 3101, 3544, 4529, 5176, 6202, 7088, 9058, 10352, 12404, 14176, 18116, 20704, 24808, 28352, 36232, 41408, 49616, 72464, 99232, 144928, 198464, 286621, 289856, 573242, 1146484, 2006347, 2292968, 4012694, 4585936, 8025388, 9171872, 16050776, 18343744, 32101552, 64203104, 128406208]

約数ペア:

[(1, 128406208), (2, 64203104), (4, 32101552), (7, 18343744), (8, 16050776), (14, 9171872), (16, 8025388), (28, 4585936), (32, 4012694), (56, 2292968), (64, 2006347), (112, 1146484), (224, 573242), (443, 289856), (448, 286621), (647, 198464), (886, 144928), (1294, 99232), (1772, 72464), (2588, 49616), (3101, 41408), (3544, 36232), (4529, 28352), (5176, 24808), (6202, 20704), (7088, 18116), (9058, 14176), (10352, 12404)]