64986940

素因数分解:

$2^2\times 5^1\times {\mathrm{709}}^1\times {\mathrm{4583}}^1$

素因数の和:5301

約数の個数: 24

約数和(自身を含む): 136694880

約数和(自身を除く): 71707940

約数列:

[1, 2, 4, 5, 10, 20, 709, 1418, 2836, 3545, 4583, 7090, 9166, 14180, 18332, 22915, 45830, 91660, 3249347, 6498694, 12997388, 16246735, 32493470, 64986940]

約数ペア:

[(1, 64986940), (2, 32493470), (4, 16246735), (5, 12997388), (10, 6498694), (20, 3249347), (709, 91660), (1418, 45830), (2836, 22915), (3545, 18332), (4583, 14180), (7090, 9166)]