81621710

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{354877}}^1$

素因数の和:354907

約数の個数: 16

約数和(自身を含む): 153307296

約数和(自身を除く): 71685586

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 354877, 709754, 1774385, 3548770, 8162171, 16324342, 40810855, 81621710]

約数ペア:

[(1, 81621710), (2, 40810855), (5, 16324342), (10, 8162171), (23, 3548770), (46, 1774385), (115, 709754), (230, 354877)]