28628235

素因数分解:

$3^4\times 5^1\times {\mathrm{70687}}^1$

素因数の和:70704

約数の個数: 20

約数和(自身を含む): 51319488

約数和(自身を除く): 22691253

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70687, 212061, 353435, 636183, 1060305, 1908549, 3180915, 5725647, 9542745, 28628235]

約数ペア:

[(1, 28628235), (3, 9542745), (5, 5725647), (9, 3180915), (15, 1908549), (27, 1060305), (45, 636183), (81, 353435), (135, 212061), (405, 70687)]