28431185

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 36200808

約数和(自身を除く): 7769623

約数列:

[1, 5, 31, 61, 97, 155, 305, 485, 961, 1891, 3007, 4805, 5917, 9455, 15035, 29585, 58621, 93217, 183427, 293105, 466085, 917135, 5686237, 28431185]

約数ペア:

[(1, 28431185), (5, 5686237), (31, 917135), (61, 466085), (97, 293105), (155, 183427), (305, 93217), (485, 58621), (961, 29585), (1891, 15035), (3007, 9455), (4805, 5917)]