51238155

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 91491840

約数和(自身を除く): 40253685

約数列:

[1, 3, 5, 15, 19, 37, 43, 57, 95, 111, 113, 129, 185, 215, 285, 339, 555, 565, 645, 703, 817, 1591, 1695, 2109, 2147, 2451, 3515, 4085, 4181, 4773, 4859, 6441, 7955, 10545, 10735, 12255, 12543, 14577, 20905, 23865, 24295, 30229, 32205, 62715, 72885, 79439, 90687, 92321, 151145, 179783, 238317, 276963, 397195, 453435, 461605, 539349, 898915, 1191585, 1384815, 2696745, 3415877, 10247631, 17079385, 51238155]

約数ペア:

[(1, 51238155), (3, 17079385), (5, 10247631), (15, 3415877), (19, 2696745), (37, 1384815), (43, 1191585), (57, 898915), (95, 539349), (111, 461605), (113, 453435), (129, 397195), (185, 276963), (215, 238317), (285, 179783), (339, 151145), (555, 92321), (565, 90687), (645, 79439), (703, 72885), (817, 62715), (1591, 32205), (1695, 30229), (2109, 24295), (2147, 23865), (2451, 20905), (3515, 14577), (4085, 12543), (4181, 12255), (4773, 10735), (4859, 10545), (6441, 7955)]