81128940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1352149}}^1$

素因数の和:1352161

約数の個数: 24

約数和(自身を含む): 227161200

約数和(自身を除く): 146032260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1352149, 2704298, 4056447, 5408596, 6760745, 8112894, 13521490, 16225788, 20282235, 27042980, 40564470, 81128940]

約数ペア:

[(1, 81128940), (2, 40564470), (3, 27042980), (4, 20282235), (5, 16225788), (6, 13521490), (10, 8112894), (12, 6760745), (15, 5408596), (20, 4056447), (30, 2704298), (60, 1352149)]