640315365

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{992737}}^1$

素因数の和:992788

約数の個数: 16

約数和(自身を含む): 1048331328

約数和(自身を除く): 408015963

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 992737, 2978211, 4963685, 14891055, 42687691, 128063073, 213438455, 640315365]

約数ペア:

[(1, 640315365), (3, 213438455), (5, 128063073), (15, 42687691), (43, 14891055), (129, 4963685), (215, 2978211), (645, 992737)]