64987060

素因数分解:

$2^2\times 5^1\times {\mathrm{1117}}^1\times {\mathrm{2909}}^1$

素因数の和:4035

約数の個数: 24

約数和(自身を含む): 136641960

約数和(自身を除く): 71654900

約数列:

[1, 2, 4, 5, 10, 20, 1117, 2234, 2909, 4468, 5585, 5818, 11170, 11636, 14545, 22340, 29090, 58180, 3249353, 6498706, 12997412, 16246765, 32493530, 64987060]

約数ペア:

[(1, 64987060), (2, 32493530), (4, 16246765), (5, 12997412), (10, 6498706), (20, 3249353), (1117, 58180), (2234, 29090), (2909, 22340), (4468, 14545), (5585, 11636), (5818, 11170)]