81118360

素因数分解:

$2^3\times 5^1\times {\mathrm{2027959}}^1$

素因数の和:2027970

約数の個数: 16

約数和(自身を含む): 182516400

約数和(自身を除く): 101398040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2027959, 4055918, 8111836, 10139795, 16223672, 20279590, 40559180, 81118360]

約数ペア:

[(1, 81118360), (2, 40559180), (4, 20279590), (5, 16223672), (8, 10139795), (10, 8111836), (20, 4055918), (40, 2027959)]