64914320

素因数分解:

$2^4\times 5^1\times {\mathrm{811429}}^1$

素因数の和:811442

約数の個数: 20

約数和(自身を含む): 150925980

約数和(自身を除く): 86011660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 811429, 1622858, 3245716, 4057145, 6491432, 8114290, 12982864, 16228580, 32457160, 64914320]

約数ペア:

[(1, 64914320), (2, 32457160), (4, 16228580), (5, 12982864), (8, 8114290), (10, 6491432), (16, 4057145), (20, 3245716), (40, 1622858), (80, 811429)]