650096

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1040

約数の個数: 20

約数和(自身を含む): 1291584

約数和(自身を除く): 641488

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 991, 1982, 3964, 7928, 15856, 40631, 81262, 162524, 325048, 650096]

約数ペア:

[(1, 650096), (2, 325048), (4, 162524), (8, 81262), (16, 40631), (41, 15856), (82, 7928), (164, 3964), (328, 1982), (656, 991)]