39872215

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1\times {\mathrm{443}}^1$

素因数の和:878

約数の個数: 16

約数和(自身を含む): 49102848

約数和(自身を除く): 9230633

約数列:

[1, 5, 47, 235, 383, 443, 1915, 2215, 18001, 20821, 90005, 104105, 169669, 848345, 7974443, 39872215]

約数ペア:

[(1, 39872215), (5, 7974443), (47, 848345), (235, 169669), (383, 104105), (443, 90005), (1915, 20821), (2215, 18001)]