1988888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 4127760

約数和(自身を除く): 2138872

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 233, 388, 466, 776, 932, 1067, 1864, 2134, 2563, 4268, 5126, 8536, 10252, 20504, 22601, 45202, 90404, 180808, 248611, 497222, 994444, 1988888]

約数ペア:

[(1, 1988888), (2, 994444), (4, 497222), (8, 248611), (11, 180808), (22, 90404), (44, 45202), (88, 22601), (97, 20504), (194, 10252), (233, 8536), (388, 5126), (466, 4268), (776, 2563), (932, 2134), (1067, 1864)]