16520440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{17957}}^1$

素因数の和:17991

約数の個数: 32

約数和(自身を含む): 38789280

約数和(自身を除く): 22268840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 17957, 35914, 71828, 89785, 143656, 179570, 359140, 413011, 718280, 826022, 1652044, 2065055, 3304088, 4130110, 8260220, 16520440]

約数ペア:

[(1, 16520440), (2, 8260220), (4, 4130110), (5, 3304088), (8, 2065055), (10, 1652044), (20, 826022), (23, 718280), (40, 413011), (46, 359140), (92, 179570), (115, 143656), (184, 89785), (230, 71828), (460, 35914), (920, 17957)]