27898880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5449}}^1$

素因数の和:5474

約数の個数: 44

約数和(自身を含む): 66936900

約数和(自身を除く): 39038020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 5449, 10898, 21796, 27245, 43592, 54490, 87184, 108980, 174368, 217960, 348736, 435920, 697472, 871840, 1394944, 1743680, 2789888, 3487360, 5579776, 6974720, 13949440, 27898880]

約数ペア:

[(1, 27898880), (2, 13949440), (4, 6974720), (5, 5579776), (8, 3487360), (10, 2789888), (16, 1743680), (20, 1394944), (32, 871840), (40, 697472), (64, 435920), (80, 348736), (128, 217960), (160, 174368), (256, 108980), (320, 87184), (512, 54490), (640, 43592), (1024, 27245), (1280, 21796), (2560, 10898), (5120, 5449)]