81625240

素因数分解:

$2^3\times 5^1\times {\mathrm{1093}}^1\times {\mathrm{1867}}^1$

素因数の和:2971

約数の個数: 32

約数和(自身を含む): 183923280

約数和(自身を除く): 102298040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1093, 1867, 2186, 3734, 4372, 5465, 7468, 8744, 9335, 10930, 14936, 18670, 21860, 37340, 43720, 74680, 2040631, 4081262, 8162524, 10203155, 16325048, 20406310, 40812620, 81625240]

約数ペア:

[(1, 81625240), (2, 40812620), (4, 20406310), (5, 16325048), (8, 10203155), (10, 8162524), (20, 4081262), (40, 2040631), (1093, 74680), (1867, 43720), (2186, 37340), (3734, 21860), (4372, 18670), (5465, 14936), (7468, 10930), (8744, 9335)]