255354967

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 310837248

約数和(自身を除く): 55482281

約数列:

[1, 7, 31, 61, 101, 191, 217, 427, 707, 1337, 1891, 3131, 5921, 6161, 11651, 13237, 19291, 21917, 41447, 43127, 81557, 135037, 190991, 361181, 598021, 1176751, 1336937, 2528267, 4186147, 8237257, 36479281, 255354967]

約数ペア:

[(1, 255354967), (7, 36479281), (31, 8237257), (61, 4186147), (101, 2528267), (191, 1336937), (217, 1176751), (427, 598021), (707, 361181), (1337, 190991), (1891, 135037), (3131, 81557), (5921, 43127), (6161, 41447), (11651, 21917), (13237, 19291)]