257321948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{159629}}^1$

素因数の和:159677

約数の個数: 24

約数和(自身を含む): 500599680

約数和(自身を除く): 243277732

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 159629, 319258, 638516, 2075177, 4150354, 4948499, 8300708, 9896998, 19793996, 64330487, 128660974, 257321948]

約数ペア:

[(1, 257321948), (2, 128660974), (4, 64330487), (13, 19793996), (26, 9896998), (31, 8300708), (52, 4948499), (62, 4150354), (124, 2075177), (403, 638516), (806, 319258), (1612, 159629)]