7894640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7591}}^1$

素因数の和:7617

約数の個数: 40

約数和(自身を含む): 19769568

約数和(自身を除く): 11874928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7591, 15182, 30364, 37955, 60728, 75910, 98683, 121456, 151820, 197366, 303640, 394732, 493415, 607280, 789464, 986830, 1578928, 1973660, 3947320, 7894640]

約数ペア:

[(1, 7894640), (2, 3947320), (4, 1973660), (5, 1578928), (8, 986830), (10, 789464), (13, 607280), (16, 493415), (20, 394732), (26, 303640), (40, 197366), (52, 151820), (65, 121456), (80, 98683), (104, 75910), (130, 60728), (208, 37955), (260, 30364), (520, 15182), (1040, 7591)]