51280138

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 99993600

約数和(自身を除く): 48713462

約数列:

[1, 2, 7, 13, 14, 26, 31, 61, 62, 91, 122, 149, 182, 217, 298, 403, 427, 434, 793, 806, 854, 1043, 1586, 1891, 1937, 2086, 2821, 3782, 3874, 4619, 5551, 5642, 9089, 9238, 11102, 13237, 13559, 18178, 24583, 26474, 27118, 32333, 49166, 60047, 63623, 64666, 118157, 120094, 127246, 172081, 236314, 281759, 344162, 420329, 563518, 827099, 840658, 1654198, 1972313, 3662867, 3944626, 7325734, 25640069, 51280138]

約数ペア:

[(1, 51280138), (2, 25640069), (7, 7325734), (13, 3944626), (14, 3662867), (26, 1972313), (31, 1654198), (61, 840658), (62, 827099), (91, 563518), (122, 420329), (149, 344162), (182, 281759), (217, 236314), (298, 172081), (403, 127246), (427, 120094), (434, 118157), (793, 64666), (806, 63623), (854, 60047), (1043, 49166), (1586, 32333), (1891, 27118), (1937, 26474), (2086, 24583), (2821, 18178), (3782, 13559), (3874, 13237), (4619, 11102), (5551, 9238), (5642, 9089)]