81005015

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5743}}^1$

素因数の和:5799

約数の個数: 32

約数和(自身を含む): 123518976

約数和(自身を除く): 42513961

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 2015, 2821, 5743, 14105, 28715, 40201, 74659, 178033, 201005, 373295, 522613, 890165, 1246231, 2314429, 2613065, 6231155, 11572145, 16201003, 81005015]

約数ペア:

[(1, 81005015), (5, 16201003), (7, 11572145), (13, 6231155), (31, 2613065), (35, 2314429), (65, 1246231), (91, 890165), (155, 522613), (217, 373295), (403, 201005), (455, 178033), (1085, 74659), (2015, 40201), (2821, 28715), (5743, 14105)]