1991231500

素因数分解:

$2^2\times 5^3\times {\mathrm{1667}}^1\times {\mathrm{2389}}^1$

素因数の和:4075

約数の個数: 48

約数和(自身を含む): 4353279840

約数和(自身を除く): 2362048340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 1667, 2389, 3334, 4778, 6668, 8335, 9556, 11945, 16670, 23890, 33340, 41675, 47780, 59725, 83350, 119450, 166700, 208375, 238900, 298625, 416750, 597250, 833500, 1194500, 3982463, 7964926, 15929852, 19912315, 39824630, 79649260, 99561575, 199123150, 398246300, 497807875, 995615750, 1991231500]

約数ペア:

[(1, 1991231500), (2, 995615750), (4, 497807875), (5, 398246300), (10, 199123150), (20, 99561575), (25, 79649260), (50, 39824630), (100, 19912315), (125, 15929852), (250, 7964926), (500, 3982463), (1667, 1194500), (2389, 833500), (3334, 597250), (4778, 416750), (6668, 298625), (8335, 238900), (9556, 208375), (11945, 166700), (16670, 119450), (23890, 83350), (33340, 59725), (41675, 47780)]