20904572944

素因数分解:

$2^4\times {\mathrm{809}}^1\times {\mathrm{1615001}}^1$

素因数の和:1615818

約数の個数: 20

約数和(自身を含む): 40552700220

約数和(自身を除く): 19648127276

約数列:

[1, 2, 4, 8, 16, 809, 1618, 3236, 6472, 12944, 1615001, 3230002, 6460004, 12920008, 25840016, 1306535809, 2613071618, 5226143236, 10452286472, 20904572944]

約数ペア:

[(1, 20904572944), (2, 10452286472), (4, 5226143236), (8, 2613071618), (16, 1306535809), (809, 25840016), (1618, 12920008), (3236, 6460004), (6472, 3230002), (12944, 1615001)]