257151645

素因数分解:

$3^3\times 5^1\times {\mathrm{1904827}}^1$

素因数の和:1904841

約数の個数: 16

約数和(自身を含む): 457158720

約数和(自身を除く): 200007075

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1904827, 5714481, 9524135, 17143443, 28572405, 51430329, 85717215, 257151645]

約数ペア:

[(1, 257151645), (3, 85717215), (5, 51430329), (9, 28572405), (15, 17143443), (27, 9524135), (45, 5714481), (135, 1904827)]