249418540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1781561}}^1$

素因数の和:1781577

約数の個数: 24

約数和(自身を含む): 598604832

約数和(自身を除く): 349186292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1781561, 3563122, 7126244, 8907805, 12470927, 17815610, 24941854, 35631220, 49883708, 62354635, 124709270, 249418540]

約数ペア:

[(1, 249418540), (2, 124709270), (4, 62354635), (5, 49883708), (7, 35631220), (10, 24941854), (14, 17815610), (20, 12470927), (28, 8907805), (35, 7126244), (70, 3563122), (140, 1781561)]