206839810

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{51581}}^1$

素因数の和:51989

約数の個数: 16

約数和(自身を含む): 373247352

約数和(自身を除く): 166407542

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 51581, 103162, 257905, 515810, 20683981, 41367962, 103419905, 206839810]

約数ペア:

[(1, 206839810), (2, 103419905), (5, 41367962), (10, 20683981), (401, 515810), (802, 257905), (2005, 103162), (4010, 51581)]