71687516

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{521}}^1\times {\mathrm{839}}^1$

素因数の和:1405

約数の個数: 24

約数和(自身を含む): 128913120

約数和(自身を除く): 57225604

約数列:

[1, 2, 4, 41, 82, 164, 521, 839, 1042, 1678, 2084, 3356, 21361, 34399, 42722, 68798, 85444, 137596, 437119, 874238, 1748476, 17921879, 35843758, 71687516]

約数ペア:

[(1, 71687516), (2, 35843758), (4, 17921879), (41, 1748476), (82, 874238), (164, 437119), (521, 137596), (839, 85444), (1042, 68798), (1678, 42722), (2084, 34399), (3356, 21361)]