6387380

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{821}}^1$

素因数の和:1219

約数の個数: 24

約数和(自身を含む): 13464360

約数和(自身を除く): 7076980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 821, 1556, 1642, 1945, 3284, 3890, 4105, 7780, 8210, 16420, 319369, 638738, 1277476, 1596845, 3193690, 6387380]

約数ペア:

[(1, 6387380), (2, 3193690), (4, 1596845), (5, 1277476), (10, 638738), (20, 319369), (389, 16420), (778, 8210), (821, 7780), (1556, 4105), (1642, 3890), (1945, 3284)]