20218362190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1\times {\mathrm{3041}}^1$

素因数の和:3517

約数の個数: 64

約数和(自身を含む): 39555734400

約数和(自身を除く): 19337372210

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 257, 398, 514, 995, 1285, 1990, 2570, 2587, 3041, 3341, 5174, 6082, 6682, 12935, 15205, 16705, 25870, 30410, 33410, 39533, 51143, 79066, 102286, 197665, 255715, 395330, 511430, 605159, 664859, 781537, 1210318, 1329718, 1563074, 3025795, 3324295, 3907685, 6051590, 6648590, 7815370, 7867067, 10159981, 15734134, 20319962, 39335335, 50799905, 78670670, 101599810, 155525863, 311051726, 777629315, 1555258630, 2021836219, 4043672438, 10109181095, 20218362190]

約数ペア:

[(1, 20218362190), (2, 10109181095), (5, 4043672438), (10, 2021836219), (13, 1555258630), (26, 777629315), (65, 311051726), (130, 155525863), (199, 101599810), (257, 78670670), (398, 50799905), (514, 39335335), (995, 20319962), (1285, 15734134), (1990, 10159981), (2570, 7867067), (2587, 7815370), (3041, 6648590), (3341, 6051590), (5174, 3907685), (6082, 3324295), (6682, 3025795), (12935, 1563074), (15205, 1329718), (16705, 1210318), (25870, 781537), (30410, 664859), (33410, 605159), (39533, 511430), (51143, 395330), (79066, 255715), (102286, 197665)]