85240

素因数分解:

$2^3\times 5^1\times {\mathrm{2131}}^1$

素因数の和:2142

約数の個数: 16

約数和(自身を含む): 191880

約数和(自身を除く): 106640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2131, 4262, 8524, 10655, 17048, 21310, 42620, 85240]

約数ペア:

[(1, 85240), (2, 42620), (4, 21310), (5, 17048), (8, 10655), (10, 8524), (20, 4262), (40, 2131)]