28264360

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1069}}^1$

素因数の和:1741

約数の個数: 32

約数和(自身を含む): 63750600

約数和(自身を除く): 35486240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1069, 1322, 2138, 2644, 3305, 4276, 5288, 5345, 6610, 8552, 10690, 13220, 21380, 26440, 42760, 706609, 1413218, 2826436, 3533045, 5652872, 7066090, 14132180, 28264360]

約数ペア:

[(1, 28264360), (2, 14132180), (4, 7066090), (5, 5652872), (8, 3533045), (10, 2826436), (20, 1413218), (40, 706609), (661, 42760), (1069, 26440), (1322, 21380), (2138, 13220), (2644, 10690), (3305, 8552), (4276, 6610), (5288, 5345)]