30888040

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1759}}^1$

素因数の和:2209

約数の個数: 32

約数和(自身を含む): 69696000

約数和(自身を除く): 38807960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 1759, 2195, 3512, 3518, 4390, 7036, 8780, 8795, 14072, 17560, 17590, 35180, 70360, 772201, 1544402, 3088804, 3861005, 6177608, 7722010, 15444020, 30888040]

約数ペア:

[(1, 30888040), (2, 15444020), (4, 7722010), (5, 6177608), (8, 3861005), (10, 3088804), (20, 1544402), (40, 772201), (439, 70360), (878, 35180), (1756, 17590), (1759, 17560), (2195, 14072), (3512, 8795), (3518, 8780), (4390, 7036)]