202070780

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{51287}}^1$

素因数の和:51493

約数の個数: 24

約数和(自身を含む): 426511008

約数和(自身を除く): 224440228

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 51287, 102574, 205148, 256435, 512870, 1025740, 10103539, 20207078, 40414156, 50517695, 101035390, 202070780]

約数ペア:

[(1, 202070780), (2, 101035390), (4, 50517695), (5, 40414156), (10, 20207078), (20, 10103539), (197, 1025740), (394, 512870), (788, 256435), (985, 205148), (1970, 102574), (3940, 51287)]