257790071

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{467}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 329951232

約数和(自身を除く): 72161161

約数列:

[1, 7, 11, 67, 77, 107, 467, 469, 737, 749, 1177, 3269, 5137, 5159, 7169, 8239, 31289, 35959, 49969, 50183, 78859, 219023, 344179, 349783, 549659, 552013, 2409253, 3347923, 3847613, 23435461, 36827153, 257790071]

約数ペア:

[(1, 257790071), (7, 36827153), (11, 23435461), (67, 3847613), (77, 3347923), (107, 2409253), (467, 552013), (469, 549659), (737, 349783), (749, 344179), (1177, 219023), (3269, 78859), (5137, 50183), (5159, 49969), (7169, 35959), (8239, 31289)]