28214800

素因数分解:

$2^4\times 5^2\times {\mathrm{70537}}^1$

素因数の和:70555

約数の個数: 30

約数和(自身を含む): 67787018

約数和(自身を除く): 39572218

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70537, 141074, 282148, 352685, 564296, 705370, 1128592, 1410740, 1763425, 2821480, 3526850, 5642960, 7053700, 14107400, 28214800]

約数ペア:

[(1, 28214800), (2, 14107400), (4, 7053700), (5, 5642960), (8, 3526850), (10, 2821480), (16, 1763425), (20, 1410740), (25, 1128592), (40, 705370), (50, 564296), (80, 352685), (100, 282148), (200, 141074), (400, 70537)]