720291308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{230567}}^1$

素因数の和:230653

約数の個数: 24

約数和(自身を含む): 1394475264

約数和(自身を除く): 674183956

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 230567, 461134, 922268, 2536237, 5072474, 10144948, 16370257, 32740514, 65481028, 180072827, 360145654, 720291308]

約数ペア:

[(1, 720291308), (2, 360145654), (4, 180072827), (11, 65481028), (22, 32740514), (44, 16370257), (71, 10144948), (142, 5072474), (284, 2536237), (781, 922268), (1562, 461134), (3124, 230567)]