38690015

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 59590656

約数和(自身を除く): 20900641

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 169, 211, 217, 403, 455, 845, 1055, 1085, 1183, 1477, 2015, 2743, 2821, 5239, 5915, 6541, 7385, 13715, 14105, 19201, 26195, 32705, 35659, 36673, 45787, 85033, 96005, 178295, 183365, 228935, 249613, 425165, 595231, 1105429, 1248065, 2976155, 5527145, 7738003, 38690015]

約数ペア:

[(1, 38690015), (5, 7738003), (7, 5527145), (13, 2976155), (31, 1248065), (35, 1105429), (65, 595231), (91, 425165), (155, 249613), (169, 228935), (211, 183365), (217, 178295), (403, 96005), (455, 85033), (845, 45787), (1055, 36673), (1085, 35659), (1183, 32705), (1477, 26195), (2015, 19201), (2743, 14105), (2821, 13715), (5239, 7385), (5915, 6541)]