80409520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52901}}^1$

素因数の和:52933

約数の個数: 40

約数和(自身を含む): 196795440

約数和(自身を除く): 116385920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 52901, 105802, 211604, 264505, 423208, 529010, 846416, 1005119, 1058020, 2010238, 2116040, 4020476, 4232080, 5025595, 8040952, 10051190, 16081904, 20102380, 40204760, 80409520]

約数ペア:

[(1, 80409520), (2, 40204760), (4, 20102380), (5, 16081904), (8, 10051190), (10, 8040952), (16, 5025595), (19, 4232080), (20, 4020476), (38, 2116040), (40, 2010238), (76, 1058020), (80, 1005119), (95, 846416), (152, 529010), (190, 423208), (304, 264505), (380, 211604), (760, 105802), (1520, 52901)]