257759944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1123}}^1\times {\mathrm{2207}}^1$

素因数の和:3349

約数の個数: 32

約数和(自身を含む): 521176320

約数和(自身を除く): 263416376

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1123, 2207, 2246, 4414, 4492, 8828, 8984, 14599, 17656, 28691, 29198, 57382, 58396, 114764, 116792, 229528, 2478461, 4956922, 9913844, 19827688, 32219993, 64439986, 128879972, 257759944]

約数ペア:

[(1, 257759944), (2, 128879972), (4, 64439986), (8, 32219993), (13, 19827688), (26, 9913844), (52, 4956922), (104, 2478461), (1123, 229528), (2207, 116792), (2246, 114764), (4414, 58396), (4492, 57382), (8828, 29198), (8984, 28691), (14599, 17656)]