16800780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{280013}}^1$

素因数の和:280025

約数の個数: 24

約数和(自身を含む): 47042352

約数和(自身を除く): 30241572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 280013, 560026, 840039, 1120052, 1400065, 1680078, 2800130, 3360156, 4200195, 5600260, 8400390, 16800780]

約数ペア:

[(1, 16800780), (2, 8400390), (3, 5600260), (4, 4200195), (5, 3360156), (6, 2800130), (10, 1680078), (12, 1400065), (15, 1120052), (20, 840039), (30, 560026), (60, 280013)]