21641600

素因数分解:

$2^7\times 5^2\times {\mathrm{6763}}^1$

素因数の和:6787

約数の個数: 48

約数和(自身を含む): 53469420

約数和(自身を除く): 31827820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 6763, 13526, 27052, 33815, 54104, 67630, 108208, 135260, 169075, 216416, 270520, 338150, 432832, 541040, 676300, 865664, 1082080, 1352600, 2164160, 2705200, 4328320, 5410400, 10820800, 21641600]

約数ペア:

[(1, 21641600), (2, 10820800), (4, 5410400), (5, 4328320), (8, 2705200), (10, 2164160), (16, 1352600), (20, 1082080), (25, 865664), (32, 676300), (40, 541040), (50, 432832), (64, 338150), (80, 270520), (100, 216416), (128, 169075), (160, 135260), (200, 108208), (320, 67630), (400, 54104), (640, 33815), (800, 27052), (1600, 13526), (3200, 6763)]