7208380

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{821}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 15190560

約数和(自身を除く): 7982180

約数列:

[1, 2, 4, 5, 10, 20, 439, 821, 878, 1642, 1756, 2195, 3284, 4105, 4390, 8210, 8780, 16420, 360419, 720838, 1441676, 1802095, 3604190, 7208380]

約数ペア:

[(1, 7208380), (2, 3604190), (4, 1802095), (5, 1441676), (10, 720838), (20, 360419), (439, 16420), (821, 8780), (878, 8210), (1642, 4390), (1756, 4105), (2195, 3284)]