81278170

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{189019}}^1$

素因数の和:189069

約数の個数: 16

約数和(自身を含む): 149703840

約数和(自身を除く): 68425670

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 189019, 378038, 945095, 1890190, 8127817, 16255634, 40639085, 81278170]

約数ペア:

[(1, 81278170), (2, 40639085), (5, 16255634), (10, 8127817), (43, 1890190), (86, 945095), (215, 378038), (430, 189019)]