20515694990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{827}}^1\times {\mathrm{354391}}^1$

素因数の和:355232

約数の個数: 32

約数和(自身を含む): 42254866944

約数和(自身を除く): 21739171954

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 827, 1654, 4135, 5789, 8270, 11578, 28945, 57890, 354391, 708782, 1771955, 2480737, 3543910, 4961474, 12403685, 24807370, 293081357, 586162714, 1465406785, 2051569499, 2930813570, 4103138998, 10257847495, 20515694990]

約数ペア:

[(1, 20515694990), (2, 10257847495), (5, 4103138998), (7, 2930813570), (10, 2051569499), (14, 1465406785), (35, 586162714), (70, 293081357), (827, 24807370), (1654, 12403685), (4135, 4961474), (5789, 3543910), (8270, 2480737), (11578, 1771955), (28945, 708782), (57890, 354391)]