386440

素因数分解:

$2^3\times 5^1\times {\mathrm{9661}}^1$

素因数の和:9672

約数の個数: 16

約数和(自身を含む): 869580

約数和(自身を除く): 483140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9661, 19322, 38644, 48305, 77288, 96610, 193220, 386440]

約数ペア:

[(1, 386440), (2, 193220), (4, 96610), (5, 77288), (8, 48305), (10, 38644), (20, 19322), (40, 9661)]