16667872

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 35773920

約数和(自身を除く): 19106048

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 103, 104, 206, 208, 389, 412, 416, 778, 824, 1339, 1556, 1648, 2678, 3112, 3296, 5057, 5356, 6224, 10114, 10712, 12448, 20228, 21424, 40067, 40456, 42848, 80134, 80912, 160268, 161824, 320536, 520871, 641072, 1041742, 1282144, 2083484, 4166968, 8333936, 16667872]

約数ペア:

[(1, 16667872), (2, 8333936), (4, 4166968), (8, 2083484), (13, 1282144), (16, 1041742), (26, 641072), (32, 520871), (52, 320536), (103, 161824), (104, 160268), (206, 80912), (208, 80134), (389, 42848), (412, 40456), (416, 40067), (778, 21424), (824, 20228), (1339, 12448), (1556, 10712), (1648, 10114), (2678, 6224), (3112, 5356), (3296, 5057)]