290415040

素因数分解:

$2^6\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1783}}^1$

素因数の和:2309

約数の個数: 56

約数和(自身を含む): 693298080

約数和(自身を除く): 402883040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 509, 1018, 1783, 2036, 2545, 3566, 4072, 5090, 7132, 8144, 8915, 10180, 14264, 16288, 17830, 20360, 28528, 32576, 35660, 40720, 57056, 71320, 81440, 114112, 142640, 162880, 285280, 570560, 907547, 1815094, 3630188, 4537735, 7260376, 9075470, 14520752, 18150940, 29041504, 36301880, 58083008, 72603760, 145207520, 290415040]

約数ペア:

[(1, 290415040), (2, 145207520), (4, 72603760), (5, 58083008), (8, 36301880), (10, 29041504), (16, 18150940), (20, 14520752), (32, 9075470), (40, 7260376), (64, 4537735), (80, 3630188), (160, 1815094), (320, 907547), (509, 570560), (1018, 285280), (1783, 162880), (2036, 142640), (2545, 114112), (3566, 81440), (4072, 71320), (5090, 57056), (7132, 40720), (8144, 35660), (8915, 32576), (10180, 28528), (14264, 20360), (16288, 17830)]