68540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:181

約数の個数: 24

約数和(自身を含む): 151200

約数和(自身を除く): 82660

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 149, 230, 298, 460, 596, 745, 1490, 2980, 3427, 6854, 13708, 17135, 34270, 68540]

約数ペア:

[(1, 68540), (2, 34270), (4, 17135), (5, 13708), (10, 6854), (20, 3427), (23, 2980), (46, 1490), (92, 745), (115, 596), (149, 460), (230, 298)]