15281555

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 20585664

約数和(自身を除く): 5304109

約数列:

[1, 5, 17, 37, 43, 85, 113, 185, 215, 565, 629, 731, 1591, 1921, 3145, 3655, 4181, 4859, 7955, 9605, 20905, 24295, 27047, 71077, 82603, 135235, 179783, 355385, 413015, 898915, 3056311, 15281555]

約数ペア:

[(1, 15281555), (5, 3056311), (17, 898915), (37, 413015), (43, 355385), (85, 179783), (113, 135235), (185, 82603), (215, 71077), (565, 27047), (629, 24295), (731, 20905), (1591, 9605), (1921, 7955), (3145, 4859), (3655, 4181)]