28611920

素因数分解:

$2^4\times 5^1\times {\mathrm{357649}}^1$

素因数の和:357662

約数の個数: 20

約数和(自身を含む): 66522900

約数和(自身を除く): 37910980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 357649, 715298, 1430596, 1788245, 2861192, 3576490, 5722384, 7152980, 14305960, 28611920]

約数ペア:

[(1, 28611920), (2, 14305960), (4, 7152980), (5, 5722384), (8, 3576490), (10, 2861192), (16, 1788245), (20, 1430596), (40, 715298), (80, 357649)]