287891065

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67979}}^1$

素因数の和:68013

約数の個数: 24

約数和(自身を含む): 433984320

約数和(自身を除く): 146093255

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 67979, 339895, 475853, 747769, 2379265, 3738845, 5234383, 8225459, 26171915, 41127295, 57578213, 287891065]

約数ペア:

[(1, 287891065), (5, 57578213), (7, 41127295), (11, 26171915), (35, 8225459), (55, 5234383), (77, 3738845), (121, 2379265), (385, 747769), (605, 475853), (847, 339895), (4235, 67979)]