28687235

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^2\times {\mathrm{107}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 36799920

約数和(自身を除く): 8112685

約数列:

[1, 5, 29, 43, 107, 145, 215, 535, 1247, 1849, 3103, 4601, 6235, 9245, 15515, 23005, 53621, 133429, 197843, 268105, 667145, 989215, 5737447, 28687235]

約数ペア:

[(1, 28687235), (5, 5737447), (29, 989215), (43, 667145), (107, 268105), (145, 197843), (215, 133429), (535, 53621), (1247, 23005), (1849, 15515), (3103, 9245), (4601, 6235)]