19740125

素因数分解:

$5^3\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2093

約数の個数: 16

約数和(自身を含む): 24960000

約数和(自身を除く): 5219875

約数列:

[1, 5, 25, 79, 125, 395, 1975, 1999, 9875, 9995, 49975, 157921, 249875, 789605, 3948025, 19740125]

約数ペア:

[(1, 19740125), (5, 3948025), (25, 789605), (79, 249875), (125, 157921), (395, 49975), (1975, 9995), (1999, 9875)]