81694544

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{10399}}^1$

素因数の和:10898

約数の個数: 20

約数和(自身を含む): 158620800

約数和(自身を除く): 76926256

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 3928, 7856, 10399, 20798, 41596, 83192, 166384, 5105909, 10211818, 20423636, 40847272, 81694544]

約数ペア:

[(1, 81694544), (2, 40847272), (4, 20423636), (8, 10211818), (16, 5105909), (491, 166384), (982, 83192), (1964, 41596), (3928, 20798), (7856, 10399)]