81267484

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{1663}}^1$

素因数の和:2329

約数の個数: 24

約数和(自身を含む): 150026240

約数和(自身を除く): 68758756

約数列:

[1, 2, 4, 19, 38, 76, 643, 1286, 1663, 2572, 3326, 6652, 12217, 24434, 31597, 48868, 63194, 126388, 1069309, 2138618, 4277236, 20316871, 40633742, 81267484]

約数ペア:

[(1, 81267484), (2, 40633742), (4, 20316871), (19, 4277236), (38, 2138618), (76, 1069309), (643, 126388), (1286, 63194), (1663, 48868), (2572, 31597), (3326, 24434), (6652, 12217)]