28528525

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:453

約数の個数: 24

約数和(自身を含む): 36926208

約数和(自身を除く): 8397683

約数列:

[1, 5, 25, 31, 131, 155, 281, 655, 775, 1405, 3275, 4061, 7025, 8711, 20305, 36811, 43555, 101525, 184055, 217775, 920275, 1141141, 5705705, 28528525]

約数ペア:

[(1, 28528525), (5, 5705705), (25, 1141141), (31, 920275), (131, 217775), (155, 184055), (281, 101525), (655, 43555), (775, 36811), (1405, 20305), (3275, 8711), (4061, 7025)]