256565745

素因数分解:

$3^3\times 5^1\times {\mathrm{1900487}}^1$

素因数の和:1900501

約数の個数: 16

約数和(自身を含む): 456117120

約数和(自身を除く): 199551375

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1900487, 5701461, 9502435, 17104383, 28507305, 51313149, 85521915, 256565745]

約数ペア:

[(1, 256565745), (3, 85521915), (5, 51313149), (9, 28507305), (15, 17104383), (27, 9502435), (45, 5701461), (135, 1900487)]