90721168

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{43283}}^1$

素因数の和:43422

約数の個数: 20

約数和(自身を含む): 177118128

約数和(自身を除く): 86396960

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 43283, 86566, 173132, 346264, 692528, 5670073, 11340146, 22680292, 45360584, 90721168]

約数ペア:

[(1, 90721168), (2, 45360584), (4, 22680292), (8, 11340146), (16, 5670073), (131, 692528), (262, 346264), (524, 173132), (1048, 86566), (2096, 43283)]