147920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^2$

素因数の和:99

約数の個数: 30

約数和(自身を含む): 352098

約数和(自身を除く): 204178

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 1849, 3440, 3698, 7396, 9245, 14792, 18490, 29584, 36980, 73960, 147920]

約数ペア:

[(1, 147920), (2, 73960), (4, 36980), (5, 29584), (8, 18490), (10, 14792), (16, 9245), (20, 7396), (40, 3698), (43, 3440), (80, 1849), (86, 1720), (172, 860), (215, 688), (344, 430)]