20108000

素因数分解:

$2^5\times 5^3\times {\mathrm{11}}^1\times {\mathrm{457}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 54014688

約数和(自身を除く): 33906688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 125, 160, 176, 200, 220, 250, 275, 352, 400, 440, 457, 500, 550, 800, 880, 914, 1000, 1100, 1375, 1760, 1828, 2000, 2200, 2285, 2750, 3656, 4000, 4400, 4570, 5027, 5500, 7312, 8800, 9140, 10054, 11000, 11425, 14624, 18280, 20108, 22000, 22850, 25135, 36560, 40216, 44000, 45700, 50270, 57125, 73120, 80432, 91400, 100540, 114250, 125675, 160864, 182800, 201080, 228500, 251350, 365600, 402160, 457000, 502700, 628375, 804320, 914000, 1005400, 1256750, 1828000, 2010800, 2513500, 4021600, 5027000, 10054000, 20108000]

約数ペア:

[(1, 20108000), (2, 10054000), (4, 5027000), (5, 4021600), (8, 2513500), (10, 2010800), (11, 1828000), (16, 1256750), (20, 1005400), (22, 914000), (25, 804320), (32, 628375), (40, 502700), (44, 457000), (50, 402160), (55, 365600), (80, 251350), (88, 228500), (100, 201080), (110, 182800), (125, 160864), (160, 125675), (176, 114250), (200, 100540), (220, 91400), (250, 80432), (275, 73120), (352, 57125), (400, 50270), (440, 45700), (457, 44000), (500, 40216), (550, 36560), (800, 25135), (880, 22850), (914, 22000), (1000, 20108), (1100, 18280), (1375, 14624), (1760, 11425), (1828, 11000), (2000, 10054), (2200, 9140), (2285, 8800), (2750, 7312), (3656, 5500), (4000, 5027), (4400, 4570)]