20828000

素因数分解:

$2^5\times 5^3\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 32007328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 80, 82, 100, 125, 127, 160, 164, 200, 205, 250, 254, 328, 400, 410, 500, 508, 635, 656, 800, 820, 1000, 1016, 1025, 1270, 1312, 1640, 2000, 2032, 2050, 2540, 3175, 3280, 4000, 4064, 4100, 5080, 5125, 5207, 6350, 6560, 8200, 10160, 10250, 10414, 12700, 15875, 16400, 20320, 20500, 20828, 25400, 26035, 31750, 32800, 41000, 41656, 50800, 52070, 63500, 82000, 83312, 101600, 104140, 127000, 130175, 164000, 166624, 208280, 254000, 260350, 416560, 508000, 520700, 650875, 833120, 1041400, 1301750, 2082800, 2603500, 4165600, 5207000, 10414000, 20828000]

約数ペア:

[(1, 20828000), (2, 10414000), (4, 5207000), (5, 4165600), (8, 2603500), (10, 2082800), (16, 1301750), (20, 1041400), (25, 833120), (32, 650875), (40, 520700), (41, 508000), (50, 416560), (80, 260350), (82, 254000), (100, 208280), (125, 166624), (127, 164000), (160, 130175), (164, 127000), (200, 104140), (205, 101600), (250, 83312), (254, 82000), (328, 63500), (400, 52070), (410, 50800), (500, 41656), (508, 41000), (635, 32800), (656, 31750), (800, 26035), (820, 25400), (1000, 20828), (1016, 20500), (1025, 20320), (1270, 16400), (1312, 15875), (1640, 12700), (2000, 10414), (2032, 10250), (2050, 10160), (2540, 8200), (3175, 6560), (3280, 6350), (4000, 5207), (4064, 5125), (4100, 5080)]