20920520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27527}}^1$

素因数の和:27557

約数の個数: 32

約数和(自身を含む): 49550400

約数和(自身を除く): 28629880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27527, 55054, 110108, 137635, 220216, 275270, 523013, 550540, 1046026, 1101080, 2092052, 2615065, 4184104, 5230130, 10460260, 20920520]

約数ペア:

[(1, 20920520), (2, 10460260), (4, 5230130), (5, 4184104), (8, 2615065), (10, 2092052), (19, 1101080), (20, 1046026), (38, 550540), (40, 523013), (76, 275270), (95, 220216), (152, 137635), (190, 110108), (380, 55054), (760, 27527)]