666656

素因数分解:

$2^5\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:344

約数の個数: 24

約数和(自身を含む): 1333584

約数和(自身を除く): 666928

約数列:

[1, 2, 4, 8, 16, 32, 83, 166, 251, 332, 502, 664, 1004, 1328, 2008, 2656, 4016, 8032, 20833, 41666, 83332, 166664, 333328, 666656]

約数ペア:

[(1, 666656), (2, 333328), (4, 166664), (8, 83332), (16, 41666), (32, 20833), (83, 8032), (166, 4016), (251, 2656), (332, 2008), (502, 1328), (664, 1004)]