81005765

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:701

約数の個数: 32

約数和(自身を含む): 108345600

約数和(自身を除く): 27339835

約数列:

[1, 5, 17, 37, 43, 85, 185, 215, 599, 629, 731, 1591, 2995, 3145, 3655, 7955, 10183, 22163, 25757, 27047, 50915, 110815, 128785, 135235, 376771, 437869, 953009, 1883855, 2189345, 4765045, 16201153, 81005765]

約数ペア:

[(1, 81005765), (5, 16201153), (17, 4765045), (37, 2189345), (43, 1883855), (85, 953009), (185, 437869), (215, 376771), (599, 135235), (629, 128785), (731, 110815), (1591, 50915), (2995, 27047), (3145, 25757), (3655, 22163), (7955, 10183)]