31328128

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 68458320

約数和(自身を除く): 37130192

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 67, 104, 128, 134, 208, 268, 281, 416, 536, 562, 832, 871, 1072, 1124, 1664, 1742, 2144, 2248, 3484, 3653, 4288, 4496, 6968, 7306, 8576, 8992, 13936, 14612, 17984, 18827, 27872, 29224, 35968, 37654, 55744, 58448, 75308, 111488, 116896, 150616, 233792, 244751, 301232, 467584, 489502, 602464, 979004, 1204928, 1958008, 2409856, 3916016, 7832032, 15664064, 31328128]

約数ペア:

[(1, 31328128), (2, 15664064), (4, 7832032), (8, 3916016), (13, 2409856), (16, 1958008), (26, 1204928), (32, 979004), (52, 602464), (64, 489502), (67, 467584), (104, 301232), (128, 244751), (134, 233792), (208, 150616), (268, 116896), (281, 111488), (416, 75308), (536, 58448), (562, 55744), (832, 37654), (871, 35968), (1072, 29224), (1124, 27872), (1664, 18827), (1742, 17984), (2144, 14612), (2248, 13936), (3484, 8992), (3653, 8576), (4288, 7306), (4496, 6968)]