20372660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13229}}^1$

素因数の和:13256

約数の個数: 48

約数和(自身を含む): 53343360

約数和(自身を除く): 32970700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13229, 26458, 52916, 66145, 92603, 132290, 145519, 185206, 264580, 291038, 370412, 463015, 582076, 727595, 926030, 1018633, 1455190, 1852060, 2037266, 2910380, 4074532, 5093165, 10186330, 20372660]

約数ペア:

[(1, 20372660), (2, 10186330), (4, 5093165), (5, 4074532), (7, 2910380), (10, 2037266), (11, 1852060), (14, 1455190), (20, 1018633), (22, 926030), (28, 727595), (35, 582076), (44, 463015), (55, 370412), (70, 291038), (77, 264580), (110, 185206), (140, 145519), (154, 132290), (220, 92603), (308, 66145), (385, 52916), (770, 26458), (1540, 13229)]