18217942015

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{107923}}^1$

素因数の和:108008

約数の個数: 48

約数和(自身を含む): 27903966048

約数和(自身を除く): 9686024033

約数列:

[1, 5, 7, 13, 35, 49, 53, 65, 91, 245, 265, 371, 455, 637, 689, 1855, 2597, 3185, 3445, 4823, 12985, 24115, 33761, 107923, 168805, 539615, 755461, 1402999, 3777305, 5288227, 5719919, 7014995, 9820993, 26441135, 28599595, 40039433, 49104965, 68746951, 74358947, 200197165, 280276031, 343734755, 371794735, 520512629, 1401380155, 2602563145, 3643588403, 18217942015]

約数ペア:

[(1, 18217942015), (5, 3643588403), (7, 2602563145), (13, 1401380155), (35, 520512629), (49, 371794735), (53, 343734755), (65, 280276031), (91, 200197165), (245, 74358947), (265, 68746951), (371, 49104965), (455, 40039433), (637, 28599595), (689, 26441135), (1855, 9820993), (2597, 7014995), (3185, 5719919), (3445, 5288227), (4823, 3777305), (12985, 1402999), (24115, 755461), (33761, 539615), (107923, 168805)]