25640069

素因数分解:

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

素因数の和:261

約数の個数: 32

約数和(自身を含む): 33331200

約数和(自身を除く): 7691131

約数列:

[1, 7, 13, 31, 61, 91, 149, 217, 403, 427, 793, 1043, 1891, 1937, 2821, 4619, 5551, 9089, 13237, 13559, 24583, 32333, 60047, 63623, 118157, 172081, 281759, 420329, 827099, 1972313, 3662867, 25640069]

約数ペア:

[(1, 25640069), (7, 3662867), (13, 1972313), (31, 827099), (61, 420329), (91, 281759), (149, 172081), (217, 118157), (403, 63623), (427, 60047), (793, 32333), (1043, 24583), (1891, 13559), (1937, 13237), (2821, 9089), (4619, 5551)]