81330928

素因数分解:

$2^4\times 7^1\times {\mathrm{726169}}^1$

素因数の和:726184

約数の個数: 20

約数和(自身を含む): 180090160

約数和(自身を除く): 98759232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 726169, 1452338, 2904676, 5083183, 5809352, 10166366, 11618704, 20332732, 40665464, 81330928]

約数ペア:

[(1, 81330928), (2, 40665464), (4, 20332732), (7, 11618704), (8, 10166366), (14, 5809352), (16, 5083183), (28, 2904676), (56, 1452338), (112, 726169)]