81305296

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{123941}}^1$

素因数の和:123990

約数の個数: 20

約数和(自身を含む): 161372484

約数和(自身を除く): 80067188

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 123941, 247882, 495764, 991528, 1983056, 5081581, 10163162, 20326324, 40652648, 81305296]

約数ペア:

[(1, 81305296), (2, 40652648), (4, 20326324), (8, 10163162), (16, 5081581), (41, 1983056), (82, 991528), (164, 495764), (328, 247882), (656, 123941)]