1223341780

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1\times {\mathrm{1021}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 2596043520

約数和(自身を除く): 1372701740

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 431, 556, 695, 862, 1021, 1390, 1724, 2042, 2155, 2780, 4084, 4310, 5105, 8620, 10210, 20420, 59909, 119818, 141919, 239636, 283838, 299545, 440051, 567676, 599090, 709595, 880102, 1198180, 1419190, 1760204, 2200255, 2838380, 4400510, 8801020, 61167089, 122334178, 244668356, 305835445, 611670890, 1223341780]

約数ペア:

[(1, 1223341780), (2, 611670890), (4, 305835445), (5, 244668356), (10, 122334178), (20, 61167089), (139, 8801020), (278, 4400510), (431, 2838380), (556, 2200255), (695, 1760204), (862, 1419190), (1021, 1198180), (1390, 880102), (1724, 709595), (2042, 599090), (2155, 567676), (2780, 440051), (4084, 299545), (4310, 283838), (5105, 239636), (8620, 141919), (10210, 119818), (20420, 59909)]