11212840

素因数分解:

$2^3\times 5^1\times {\mathrm{280321}}^1$

素因数の和:280332

約数の個数: 16

約数和(自身を含む): 25228980

約数和(自身を除く): 14016140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 280321, 560642, 1121284, 1401605, 2242568, 2803210, 5606420, 11212840]

約数ペア:

[(1, 11212840), (2, 5606420), (4, 2803210), (5, 2242568), (8, 1401605), (10, 1121284), (20, 560642), (40, 280321)]