81282015

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:469

約数の個数: 64

約数和(自身を含む): 154897920

約数和(自身を除く): 73615905

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 107, 135, 153, 255, 321, 331, 459, 535, 765, 963, 993, 1605, 1655, 1819, 2295, 2889, 2979, 4815, 4965, 5457, 5627, 8937, 9095, 14445, 14895, 16371, 16881, 27285, 28135, 35417, 44685, 49113, 50643, 81855, 84405, 106251, 151929, 177085, 245565, 253215, 318753, 531255, 602089, 759645, 956259, 1593765, 1806267, 3010445, 4781295, 5418801, 9031335, 16256403, 27094005, 81282015]

約数ペア:

[(1, 81282015), (3, 27094005), (5, 16256403), (9, 9031335), (15, 5418801), (17, 4781295), (27, 3010445), (45, 1806267), (51, 1593765), (85, 956259), (107, 759645), (135, 602089), (153, 531255), (255, 318753), (321, 253215), (331, 245565), (459, 177085), (535, 151929), (765, 106251), (963, 84405), (993, 81855), (1605, 50643), (1655, 49113), (1819, 44685), (2295, 35417), (2889, 28135), (2979, 27285), (4815, 16881), (4965, 16371), (5457, 14895), (5627, 14445), (8937, 9095)]