81138770

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{111149}}^1$

素因数の和:111229

約数の個数: 16

約数和(自身を含む): 148051800

約数和(自身を除く): 66913030

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 111149, 222298, 555745, 1111490, 8113877, 16227754, 40569385, 81138770]

約数ペア:

[(1, 81138770), (2, 40569385), (5, 16227754), (10, 8113877), (73, 1111490), (146, 555745), (365, 222298), (730, 111149)]