261112254

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{613}}^1$

素因数の和:801

約数の個数: 64

約数和(自身を含む): 580952064

約数和(自身を除く): 319839810

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 127, 129, 254, 258, 381, 559, 613, 762, 1118, 1226, 1651, 1677, 1839, 3302, 3354, 3678, 4953, 5461, 7969, 9906, 10922, 15938, 16383, 23907, 26359, 32766, 47814, 52718, 70993, 77851, 79077, 141986, 155702, 158154, 212979, 233553, 342667, 425958, 467106, 685334, 1012063, 1028001, 2024126, 2056002, 3036189, 3347593, 6072378, 6695186, 10042779, 20085558, 43518709, 87037418, 130556127, 261112254]

約数ペア:

[(1, 261112254), (2, 130556127), (3, 87037418), (6, 43518709), (13, 20085558), (26, 10042779), (39, 6695186), (43, 6072378), (78, 3347593), (86, 3036189), (127, 2056002), (129, 2024126), (254, 1028001), (258, 1012063), (381, 685334), (559, 467106), (613, 425958), (762, 342667), (1118, 233553), (1226, 212979), (1651, 158154), (1677, 155702), (1839, 141986), (3302, 79077), (3354, 77851), (3678, 70993), (4953, 52718), (5461, 47814), (7969, 32766), (9906, 26359), (10922, 23907), (15938, 16383)]