8222840

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{661}}^1$

素因数の和:983

約数の個数: 32

約数和(自身を含む): 18588960

約数和(自身を除く): 10366120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 661, 1244, 1322, 1555, 2488, 2644, 3110, 3305, 5288, 6220, 6610, 12440, 13220, 26440, 205571, 411142, 822284, 1027855, 1644568, 2055710, 4111420, 8222840]

約数ペア:

[(1, 8222840), (2, 4111420), (4, 2055710), (5, 1644568), (8, 1027855), (10, 822284), (20, 411142), (40, 205571), (311, 26440), (622, 13220), (661, 12440), (1244, 6610), (1322, 6220), (1555, 5288), (2488, 3305), (2644, 3110)]