20899640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22717}}^1$

素因数の和:22751

約数の個数: 32

約数和(自身を含む): 49070880

約数和(自身を除く): 28171240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22717, 45434, 90868, 113585, 181736, 227170, 454340, 522491, 908680, 1044982, 2089964, 2612455, 4179928, 5224910, 10449820, 20899640]

約数ペア:

[(1, 20899640), (2, 10449820), (4, 5224910), (5, 4179928), (8, 2612455), (10, 2089964), (20, 1044982), (23, 908680), (40, 522491), (46, 454340), (92, 227170), (115, 181736), (184, 113585), (230, 90868), (460, 45434), (920, 22717)]