81524905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1979}}^1$

素因数の和:2109

約数の個数: 32

約数和(自身を含む): 123171840

約数和(自身を除く): 41646935

約数列:

[1, 5, 7, 11, 35, 55, 77, 107, 385, 535, 749, 1177, 1979, 3745, 5885, 8239, 9895, 13853, 21769, 41195, 69265, 108845, 152383, 211753, 761915, 1058765, 1482271, 2329283, 7411355, 11646415, 16304981, 81524905]

約数ペア:

[(1, 81524905), (5, 16304981), (7, 11646415), (11, 7411355), (35, 2329283), (55, 1482271), (77, 1058765), (107, 761915), (385, 211753), (535, 152383), (749, 108845), (1177, 69265), (1979, 41195), (3745, 21769), (5885, 13853), (8239, 9895)]