86660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{619}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 208320

約数和(自身を除く): 121660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 619, 1238, 2476, 3095, 4333, 6190, 8666, 12380, 17332, 21665, 43330, 86660]

約数ペア:

[(1, 86660), (2, 43330), (4, 21665), (5, 17332), (7, 12380), (10, 8666), (14, 6190), (20, 4333), (28, 3095), (35, 2476), (70, 1238), (140, 619)]