257889242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{2341}}^1$

素因数の和:2598

約数の個数: 32

約数和(自身を含む): 440670720

約数和(自身を除く): 182781478

約数列:

[1, 2, 13, 19, 26, 38, 223, 247, 446, 494, 2341, 2899, 4237, 4682, 5798, 8474, 30433, 44479, 55081, 60866, 88958, 110162, 522043, 578227, 1044086, 1156454, 6786559, 9918817, 13573118, 19837634, 128944621, 257889242]

約数ペア:

[(1, 257889242), (2, 128944621), (13, 19837634), (19, 13573118), (26, 9918817), (38, 6786559), (223, 1156454), (247, 1044086), (446, 578227), (494, 522043), (2341, 110162), (2899, 88958), (4237, 60866), (4682, 55081), (5798, 44479), (8474, 30433)]