81679540

素因数分解:

$2^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{10949}}^1$

素因数の和:11331

約数の個数: 24

約数和(自身を含む): 172002600

約数和(自身を除く): 90323060

約数列:

[1, 2, 4, 5, 10, 20, 373, 746, 1492, 1865, 3730, 7460, 10949, 21898, 43796, 54745, 109490, 218980, 4083977, 8167954, 16335908, 20419885, 40839770, 81679540]

約数ペア:

[(1, 81679540), (2, 40839770), (4, 20419885), (5, 16335908), (10, 8167954), (20, 4083977), (373, 218980), (746, 109490), (1492, 54745), (1865, 43796), (3730, 21898), (7460, 10949)]