39808520

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2267}}^1$

素因数の和:2717

約数の個数: 32

約数和(自身を含む): 89812800

約数和(自身を除く): 50004280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 2267, 3512, 4390, 4534, 8780, 9068, 11335, 17560, 18136, 22670, 45340, 90680, 995213, 1990426, 3980852, 4976065, 7961704, 9952130, 19904260, 39808520]

約数ペア:

[(1, 39808520), (2, 19904260), (4, 9952130), (5, 7961704), (8, 4976065), (10, 3980852), (20, 1990426), (40, 995213), (439, 90680), (878, 45340), (1756, 22670), (2195, 18136), (2267, 17560), (3512, 11335), (4390, 9068), (4534, 8780)]