25540180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67211}}^1$

素因数の和:67239

約数の個数: 24

約数和(自身を含む): 56458080

約数和(自身を除く): 30917900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 67211, 134422, 268844, 336055, 672110, 1277009, 1344220, 2554018, 5108036, 6385045, 12770090, 25540180]

約数ペア:

[(1, 25540180), (2, 12770090), (4, 6385045), (5, 5108036), (10, 2554018), (19, 1344220), (20, 1277009), (38, 672110), (76, 336055), (95, 268844), (190, 134422), (380, 67211)]