64866520

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^2\times {\mathrm{127}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 148412160

約数和(自身を除く): 83545640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 127, 226, 254, 452, 508, 565, 635, 904, 1016, 1130, 1270, 2260, 2540, 4520, 5080, 12769, 14351, 25538, 28702, 51076, 57404, 63845, 71755, 102152, 114808, 127690, 143510, 255380, 287020, 510760, 574040, 1621663, 3243326, 6486652, 8108315, 12973304, 16216630, 32433260, 64866520]

約数ペア:

[(1, 64866520), (2, 32433260), (4, 16216630), (5, 12973304), (8, 8108315), (10, 6486652), (20, 3243326), (40, 1621663), (113, 574040), (127, 510760), (226, 287020), (254, 255380), (452, 143510), (508, 127690), (565, 114808), (635, 102152), (904, 71755), (1016, 63845), (1130, 57404), (1270, 51076), (2260, 28702), (2540, 25538), (4520, 14351), (5080, 12769)]