38494780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27109}}^1$

素因数の和:27189

約数の個数: 24

約数和(自身を含む): 81980640

約数和(自身を除く): 43485860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 27109, 54218, 108436, 135545, 271090, 542180, 1924739, 3849478, 7698956, 9623695, 19247390, 38494780]

約数ペア:

[(1, 38494780), (2, 19247390), (4, 9623695), (5, 7698956), (10, 3849478), (20, 1924739), (71, 542180), (142, 271090), (284, 135545), (355, 108436), (710, 54218), (1420, 27109)]