20394290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41621}}^1$

素因数の和:41642

約数の個数: 24

約数和(自身を含む): 42704172

約数和(自身を除く): 22309882

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41621, 83242, 208105, 291347, 416210, 582694, 1456735, 2039429, 2913470, 4078858, 10197145, 20394290]

約数ペア:

[(1, 20394290), (2, 10197145), (5, 4078858), (7, 2913470), (10, 2039429), (14, 1456735), (35, 582694), (49, 416210), (70, 291347), (98, 208105), (245, 83242), (490, 41621)]