67580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:149

約数の個数: 24

約数和(自身を含む): 147840

約数和(自身を除く): 80260

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 218, 310, 436, 545, 620, 1090, 2180, 3379, 6758, 13516, 16895, 33790, 67580]

約数ペア:

[(1, 67580), (2, 33790), (4, 16895), (5, 13516), (10, 6758), (20, 3379), (31, 2180), (62, 1090), (109, 620), (124, 545), (155, 436), (218, 310)]