20389725

素因数分解:

$3^4\times 5^2\times {\mathrm{10069}}^1$

素因数の和:10091

約数の個数: 30

約数和(自身を含む): 37772570

約数和(自身を除く): 17382845

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10069, 30207, 50345, 90621, 151035, 251725, 271863, 453105, 755175, 815589, 1359315, 2265525, 4077945, 6796575, 20389725]

約数ペア:

[(1, 20389725), (3, 6796575), (5, 4077945), (9, 2265525), (15, 1359315), (25, 815589), (27, 755175), (45, 453105), (75, 271863), (81, 251725), (135, 151035), (225, 90621), (405, 50345), (675, 30207), (2025, 10069)]