20857579054

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1\times {\mathrm{359}}^1$

素因数の和:905

約数の個数: 64

約数和(自身を含む): 34897927680

約数和(自身を除く): 14040348626

約数列:

[1, 2, 13, 26, 43, 86, 157, 314, 331, 359, 559, 662, 718, 1118, 2041, 4082, 4303, 4667, 6751, 8606, 9334, 13502, 14233, 15437, 28466, 30874, 51967, 56363, 87763, 103934, 112726, 118829, 175526, 185029, 200681, 237658, 370058, 401362, 675571, 732719, 1351142, 1465438, 1544777, 2234581, 2423609, 3089554, 4469162, 4847218, 5109647, 10219294, 18656153, 29049553, 31506917, 37312306, 58099106, 63013834, 66425411, 132850822, 242529989, 485059978, 802214579, 1604429158, 10428789527, 20857579054]

約数ペア:

[(1, 20857579054), (2, 10428789527), (13, 1604429158), (26, 802214579), (43, 485059978), (86, 242529989), (157, 132850822), (314, 66425411), (331, 63013834), (359, 58099106), (559, 37312306), (662, 31506917), (718, 29049553), (1118, 18656153), (2041, 10219294), (4082, 5109647), (4303, 4847218), (4667, 4469162), (6751, 3089554), (8606, 2423609), (9334, 2234581), (13502, 1544777), (14233, 1465438), (15437, 1351142), (28466, 732719), (30874, 675571), (51967, 401362), (56363, 370058), (87763, 237658), (103934, 200681), (112726, 185029), (118829, 175526)]