697328

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{1063}}^1$

素因数の和:1112

約数の個数: 20

約数和(自身を含む): 1385328

約数和(自身を除く): 688000

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 1063, 2126, 4252, 8504, 17008, 43583, 87166, 174332, 348664, 697328]

約数ペア:

[(1, 697328), (2, 348664), (4, 174332), (8, 87166), (16, 43583), (41, 17008), (82, 8504), (164, 4252), (328, 2126), (656, 1063)]