28915145

素因数分解:

$5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{1103}}^1$

素因数の和:1229

約数の個数: 24

約数和(自身を含む): 40777344

約数和(自身を除く): 11862199

約数列:

[1, 5, 7, 35, 49, 107, 245, 535, 749, 1103, 3745, 5243, 5515, 7721, 26215, 38605, 54047, 118021, 270235, 590105, 826147, 4130735, 5783029, 28915145]

約数ペア:

[(1, 28915145), (5, 5783029), (7, 4130735), (35, 826147), (49, 590105), (107, 270235), (245, 118021), (535, 54047), (749, 38605), (1103, 26215), (3745, 7721), (5243, 5515)]