21628000

素因数分解:

$2^5\times 5^3\times {\mathrm{5407}}^1$

素因数の和:5432

約数の個数: 48

約数和(自身を含む): 53149824

約数和(自身を除く): 31521824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 5407, 10814, 21628, 27035, 43256, 54070, 86512, 108140, 135175, 173024, 216280, 270350, 432560, 540700, 675875, 865120, 1081400, 1351750, 2162800, 2703500, 4325600, 5407000, 10814000, 21628000]

約数ペア:

[(1, 21628000), (2, 10814000), (4, 5407000), (5, 4325600), (8, 2703500), (10, 2162800), (16, 1351750), (20, 1081400), (25, 865120), (32, 675875), (40, 540700), (50, 432560), (80, 270350), (100, 216280), (125, 173024), (160, 135175), (200, 108140), (250, 86512), (400, 54070), (500, 43256), (800, 27035), (1000, 21628), (2000, 10814), (4000, 5407)]