257425909

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 297239040

約数和(自身を除く): 39813131

約数列:

[1, 13, 37, 47, 59, 193, 481, 611, 767, 1739, 2183, 2509, 2773, 7141, 9071, 11387, 22607, 28379, 36049, 92833, 102601, 117923, 148031, 335627, 421319, 535189, 1333813, 4363151, 5477147, 6957457, 19801993, 257425909]

約数ペア:

[(1, 257425909), (13, 19801993), (37, 6957457), (47, 5477147), (59, 4363151), (193, 1333813), (481, 535189), (611, 421319), (767, 335627), (1739, 148031), (2183, 117923), (2509, 102601), (2773, 92833), (7141, 36049), (9071, 28379), (11387, 22607)]