639616

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 1346400

約数和(自身を除く): 706784

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 263, 304, 526, 608, 1052, 1216, 2104, 2432, 4208, 4997, 8416, 9994, 16832, 19988, 33664, 39976, 79952, 159904, 319808, 639616]

約数ペア:

[(1, 639616), (2, 319808), (4, 159904), (8, 79952), (16, 39976), (19, 33664), (32, 19988), (38, 16832), (64, 9994), (76, 8416), (128, 4997), (152, 4208), (263, 2432), (304, 2104), (526, 1216), (608, 1052)]