64391855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1433}}^1$

素因数の和:1511

約数の個数: 32

約数和(自身を含む): 90858240

約数和(自身を除く): 26466385

約数列:

[1, 5, 11, 19, 43, 55, 95, 209, 215, 473, 817, 1045, 1433, 2365, 4085, 7165, 8987, 15763, 27227, 44935, 61619, 78815, 136135, 299497, 308095, 677809, 1170761, 1497485, 3389045, 5853805, 12878371, 64391855]

約数ペア:

[(1, 64391855), (5, 12878371), (11, 5853805), (19, 3389045), (43, 1497485), (55, 1170761), (95, 677809), (209, 308095), (215, 299497), (473, 136135), (817, 78815), (1045, 61619), (1433, 44935), (2365, 27227), (4085, 15763), (7165, 8987)]