21022000

素因数分解:

$2^4\times 5^3\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:503

約数の個数: 80

約数和(自身を含む): 53157312

約数和(自身を除く): 32135312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 125, 184, 200, 230, 250, 368, 400, 457, 460, 500, 575, 914, 920, 1000, 1150, 1828, 1840, 2000, 2285, 2300, 2875, 3656, 4570, 4600, 5750, 7312, 9140, 9200, 10511, 11425, 11500, 18280, 21022, 22850, 23000, 36560, 42044, 45700, 46000, 52555, 57125, 84088, 91400, 105110, 114250, 168176, 182800, 210220, 228500, 262775, 420440, 457000, 525550, 840880, 914000, 1051100, 1313875, 2102200, 2627750, 4204400, 5255500, 10511000, 21022000]

約数ペア:

[(1, 21022000), (2, 10511000), (4, 5255500), (5, 4204400), (8, 2627750), (10, 2102200), (16, 1313875), (20, 1051100), (23, 914000), (25, 840880), (40, 525550), (46, 457000), (50, 420440), (80, 262775), (92, 228500), (100, 210220), (115, 182800), (125, 168176), (184, 114250), (200, 105110), (230, 91400), (250, 84088), (368, 57125), (400, 52555), (457, 46000), (460, 45700), (500, 42044), (575, 36560), (914, 23000), (920, 22850), (1000, 21022), (1150, 18280), (1828, 11500), (1840, 11425), (2000, 10511), (2285, 9200), (2300, 9140), (2875, 7312), (3656, 5750), (4570, 4600)]