81942908

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{1009}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 145924800

約数和(自身を除く): 63981892

約数列:

[1, 2, 4, 79, 158, 257, 316, 514, 1009, 1028, 2018, 4036, 20303, 40606, 79711, 81212, 159422, 259313, 318844, 518626, 1037252, 20485727, 40971454, 81942908]

約数ペア:

[(1, 81942908), (2, 40971454), (4, 20485727), (79, 1037252), (158, 518626), (257, 318844), (316, 259313), (514, 159422), (1009, 81212), (1028, 79711), (2018, 40606), (4036, 20303)]