81029565

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3923}}^1$

素因数の和:3960

約数の個数: 48

約数和(自身を含む): 154260288

約数和(自身を除く): 73230723

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 1215, 1377, 2295, 3923, 4131, 6885, 11769, 19615, 20655, 35307, 58845, 66691, 105921, 176535, 200073, 317763, 333455, 529605, 600219, 953289, 1000365, 1588815, 1800657, 3001095, 4766445, 5401971, 9003285, 16205913, 27009855, 81029565]

約数ペア:

[(1, 81029565), (3, 27009855), (5, 16205913), (9, 9003285), (15, 5401971), (17, 4766445), (27, 3001095), (45, 1800657), (51, 1588815), (81, 1000365), (85, 953289), (135, 600219), (153, 529605), (243, 333455), (255, 317763), (405, 200073), (459, 176535), (765, 105921), (1215, 66691), (1377, 58845), (2295, 35307), (3923, 20655), (4131, 19615), (6885, 11769)]