81256005

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{106217}}^1$

素因数の和:106245

約数の個数: 24

約数和(自身を含む): 149130072

約数和(自身を除く): 67874067

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 106217, 318651, 531085, 955953, 1593255, 1805689, 4779765, 5417067, 9028445, 16251201, 27085335, 81256005]

約数ペア:

[(1, 81256005), (3, 27085335), (5, 16251201), (9, 9028445), (15, 5417067), (17, 4779765), (45, 1805689), (51, 1593255), (85, 955953), (153, 531085), (255, 318651), (765, 106217)]