12447640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7237}}^1$

素因数の和:7291

約数の個数: 32

約数和(自身を含む): 28662480

約数和(自身を除く): 16214840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7237, 14474, 28948, 36185, 57896, 72370, 144740, 289480, 311191, 622382, 1244764, 1555955, 2489528, 3111910, 6223820, 12447640]

約数ペア:

[(1, 12447640), (2, 6223820), (4, 3111910), (5, 2489528), (8, 1555955), (10, 1244764), (20, 622382), (40, 311191), (43, 289480), (86, 144740), (172, 72370), (215, 57896), (344, 36185), (430, 28948), (860, 14474), (1720, 7237)]