64642660

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{45523}}^1$

素因数の和:45603

約数の個数: 24

約数和(自身を含む): 137664576

約数和(自身を除く): 73021916

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 45523, 91046, 182092, 227615, 455230, 910460, 3232133, 6464266, 12928532, 16160665, 32321330, 64642660]

約数ペア:

[(1, 64642660), (2, 32321330), (4, 16160665), (5, 12928532), (10, 6464266), (20, 3232133), (71, 910460), (142, 455230), (284, 227615), (355, 182092), (710, 91046), (1420, 45523)]