27991555

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1\times {\mathrm{383}}^1$

素因数の和:746

約数の個数: 16

約数和(自身を含む): 34504704

約数和(自身を除く): 6513149

約数列:

[1, 5, 47, 235, 311, 383, 1555, 1915, 14617, 18001, 73085, 90005, 119113, 595565, 5598311, 27991555]

約数ペア:

[(1, 27991555), (5, 5598311), (47, 595565), (235, 119113), (311, 90005), (383, 73085), (1555, 18001), (1915, 14617)]