239080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 554400

約数和(自身を除く): 315320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 139, 172, 215, 278, 344, 430, 556, 695, 860, 1112, 1390, 1720, 2780, 5560, 5977, 11954, 23908, 29885, 47816, 59770, 119540, 239080]

約数ペア:

[(1, 239080), (2, 119540), (4, 59770), (5, 47816), (8, 29885), (10, 23908), (20, 11954), (40, 5977), (43, 5560), (86, 2780), (139, 1720), (172, 1390), (215, 1112), (278, 860), (344, 695), (430, 556)]