646840384

素因数分解:

$2^6\times {\mathrm{10106881}}^1$

素因数の和:10106893

約数の個数: 14

約数和(自身を含む): 1283574014

約数和(自身を除く): 636733630

約数列:

[1, 2, 4, 8, 16, 32, 64, 10106881, 20213762, 40427524, 80855048, 161710096, 323420192, 646840384]

約数ペア:

[(1, 646840384), (2, 323420192), (4, 161710096), (8, 80855048), (16, 40427524), (32, 20213762), (64, 10106881)]