217427680

素因数分解:

$2^5\times 5^1\times {\mathrm{479}}^1\times {\mathrm{2837}}^1$

素因数の和:3331

約数の個数: 48

約数和(自身を含む): 514926720

約数和(自身を除く): 297499040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 479, 958, 1916, 2395, 2837, 3832, 4790, 5674, 7664, 9580, 11348, 14185, 15328, 19160, 22696, 28370, 38320, 45392, 56740, 76640, 90784, 113480, 226960, 453920, 1358923, 2717846, 5435692, 6794615, 10871384, 13589230, 21742768, 27178460, 43485536, 54356920, 108713840, 217427680]

約数ペア:

[(1, 217427680), (2, 108713840), (4, 54356920), (5, 43485536), (8, 27178460), (10, 21742768), (16, 13589230), (20, 10871384), (32, 6794615), (40, 5435692), (80, 2717846), (160, 1358923), (479, 453920), (958, 226960), (1916, 113480), (2395, 90784), (2837, 76640), (3832, 56740), (4790, 45392), (5674, 38320), (7664, 28370), (9580, 22696), (11348, 19160), (14185, 15328)]