128428454

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{2039}}^1$

素因数の和:2468

約数の個数: 32

約数和(自身を含む): 240883200

約数和(自身を除く): 112454746

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 409, 818, 2039, 2863, 4078, 4499, 5726, 8998, 14273, 22429, 28546, 31493, 44858, 62986, 157003, 314006, 833951, 1667902, 5837657, 9173461, 11675314, 18346922, 64214227, 128428454]

約数ペア:

[(1, 128428454), (2, 64214227), (7, 18346922), (11, 11675314), (14, 9173461), (22, 5837657), (77, 1667902), (154, 833951), (409, 314006), (818, 157003), (2039, 62986), (2863, 44858), (4078, 31493), (4499, 28546), (5726, 22429), (8998, 14273)]