18917520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{78823}}^1$

素因数の和:78839

約数の個数: 40

約数和(自身を含む): 58645056

約数和(自身を除く): 39727536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 78823, 157646, 236469, 315292, 394115, 472938, 630584, 788230, 945876, 1182345, 1261168, 1576460, 1891752, 2364690, 3152920, 3783504, 4729380, 6305840, 9458760, 18917520]

約数ペア:

[(1, 18917520), (2, 9458760), (3, 6305840), (4, 4729380), (5, 3783504), (6, 3152920), (8, 2364690), (10, 1891752), (12, 1576460), (15, 1261168), (16, 1182345), (20, 945876), (24, 788230), (30, 630584), (40, 472938), (48, 394115), (60, 315292), (80, 236469), (120, 157646), (240, 78823)]