81961335

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:605

約数の個数: 64

約数和(自身を含む): 156764160

約数和(自身を除く): 74802825

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 71, 85, 135, 153, 213, 255, 355, 459, 503, 639, 765, 1065, 1207, 1509, 1917, 2295, 2515, 3195, 3621, 4527, 6035, 7545, 8551, 9585, 10863, 13581, 18105, 22635, 25653, 32589, 35713, 42755, 54315, 67905, 76959, 107139, 128265, 162945, 178565, 230877, 321417, 384795, 535695, 607121, 964251, 1154385, 1607085, 1821363, 3035605, 4821255, 5464089, 9106815, 16392267, 27320445, 81961335]

約数ペア:

[(1, 81961335), (3, 27320445), (5, 16392267), (9, 9106815), (15, 5464089), (17, 4821255), (27, 3035605), (45, 1821363), (51, 1607085), (71, 1154385), (85, 964251), (135, 607121), (153, 535695), (213, 384795), (255, 321417), (355, 230877), (459, 178565), (503, 162945), (639, 128265), (765, 107139), (1065, 76959), (1207, 67905), (1509, 54315), (1917, 42755), (2295, 35713), (2515, 32589), (3195, 25653), (3621, 22635), (4527, 18105), (6035, 13581), (7545, 10863), (8551, 9585)]