20083880

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1031}}^1$

素因数の和:1529

約数の個数: 32

約数和(自身を含む): 45325440

約数和(自身を除く): 25241560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1031, 1948, 2062, 2435, 3896, 4124, 4870, 5155, 8248, 9740, 10310, 19480, 20620, 41240, 502097, 1004194, 2008388, 2510485, 4016776, 5020970, 10041940, 20083880]

約数ペア:

[(1, 20083880), (2, 10041940), (4, 5020970), (5, 4016776), (8, 2510485), (10, 2008388), (20, 1004194), (40, 502097), (487, 41240), (974, 20620), (1031, 19480), (1948, 10310), (2062, 9740), (2435, 8248), (3896, 5155), (4124, 4870)]