63664840

素因数分解:

$2^3\times 5^1\times {\mathrm{1591621}}^1$

素因数の和:1591632

約数の個数: 16

約数和(自身を含む): 143245980

約数和(自身を除く): 79581140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1591621, 3183242, 6366484, 7958105, 12732968, 15916210, 31832420, 63664840]

約数ペア:

[(1, 63664840), (2, 31832420), (4, 15916210), (5, 12732968), (8, 7958105), (10, 6366484), (20, 3183242), (40, 1591621)]