209901320

素因数分解:

$2^3\times 5^1\times {\mathrm{5247533}}^1$

素因数の和:5247544

約数の個数: 16

約数和(自身を含む): 472278060

約数和(自身を除く): 262376740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5247533, 10495066, 20990132, 26237665, 41980264, 52475330, 104950660, 209901320]

約数ペア:

[(1, 209901320), (2, 104950660), (4, 52475330), (5, 41980264), (8, 26237665), (10, 20990132), (20, 10495066), (40, 5247533)]