7761220

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1381}}^1$

素因数の和:1671

約数の個数: 24

約数和(自身を含む): 16368408

約数和(自身を除く): 8607188

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1381, 1405, 2762, 2810, 5524, 5620, 6905, 13810, 27620, 388061, 776122, 1552244, 1940305, 3880610, 7761220]

約数ペア:

[(1, 7761220), (2, 3880610), (4, 1940305), (5, 1552244), (10, 776122), (20, 388061), (281, 27620), (562, 13810), (1124, 6905), (1381, 5620), (1405, 5524), (2762, 2810)]