128220484

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{157907}}^1$

素因数の和:157947

約数の個数: 24

約数和(自身を含む): 265285440

約数和(自身を除く): 137064956

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 157907, 315814, 631628, 1105349, 2210698, 4421396, 4579303, 9158606, 18317212, 32055121, 64110242, 128220484]

約数ペア:

[(1, 128220484), (2, 64110242), (4, 32055121), (7, 18317212), (14, 9158606), (28, 4579303), (29, 4421396), (58, 2210698), (116, 1105349), (203, 631628), (406, 315814), (812, 157907)]