257296

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1237}}^1$

素因数の和:1258

約数の個数: 20

約数和(自身を含む): 537292

約数和(自身を除く): 279996

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1237, 2474, 4948, 9896, 16081, 19792, 32162, 64324, 128648, 257296]

約数ペア:

[(1, 257296), (2, 128648), (4, 64324), (8, 32162), (13, 19792), (16, 16081), (26, 9896), (52, 4948), (104, 2474), (208, 1237)]