128570817880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139750889}}^1$

素因数の和:139750923

約数の個数: 32

約数和(自身を含む): 301861922400

約数和(自身を除く): 173291104520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 139750889, 279501778, 559003556, 698754445, 1118007112, 1397508890, 2795017780, 3214270447, 5590035560, 6428540894, 12857081788, 16071352235, 25714163576, 32142704470, 64285408940, 128570817880]

約数ペア:

[(1, 128570817880), (2, 64285408940), (4, 32142704470), (5, 25714163576), (8, 16071352235), (10, 12857081788), (20, 6428540894), (23, 5590035560), (40, 3214270447), (46, 2795017780), (92, 1397508890), (115, 1118007112), (184, 698754445), (230, 559003556), (460, 279501778), (920, 139750889)]