81217790

素因数分解:

$2^1\times 5^1\times {\mathrm{1877}}^1\times {\mathrm{4327}}^1$

素因数の和:6211

約数の個数: 16

約数和(自身を含む): 146303712

約数和(自身を除く): 65085922

約数列:

[1, 2, 5, 10, 1877, 3754, 4327, 8654, 9385, 18770, 21635, 43270, 8121779, 16243558, 40608895, 81217790]

約数ペア:

[(1, 81217790), (2, 40608895), (5, 16243558), (10, 8121779), (1877, 43270), (3754, 21635), (4327, 18770), (8654, 9385)]