20153171655

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1621}}^1$

素因数の和:1822

約数の個数: 128

約数和(自身を含む): 39052569600

約数和(自身を除く): 18899397945

約数列:

[1, 3, 5, 9, 15, 19, 27, 37, 45, 57, 95, 111, 131, 135, 171, 185, 285, 333, 393, 513, 555, 655, 703, 855, 999, 1179, 1621, 1665, 1965, 2109, 2489, 2565, 3515, 3537, 4847, 4863, 4995, 5895, 6327, 7467, 8105, 10545, 12445, 14541, 14589, 17685, 18981, 22401, 24235, 24315, 30799, 31635, 37335, 43623, 43767, 59977, 67203, 72705, 72945, 92093, 92397, 94905, 112005, 130869, 153995, 179931, 212351, 218115, 218835, 276279, 277191, 299885, 336015, 460465, 461985, 539793, 637053, 654345, 828837, 831573, 899655, 1061755, 1139563, 1381395, 1385955, 1619379, 1911159, 2486511, 2698965, 3185265, 3418689, 4034669, 4144185, 4157865, 5697815, 5733477, 7856987, 8096895, 9555795, 10256067, 12104007, 12432555, 17093445, 20173345, 23570961, 28667385, 30768201, 36312021, 39284935, 51280335, 60520035, 70712883, 108936063, 117854805, 149282753, 153841005, 181560105, 212138649, 353564415, 447848259, 544680315, 746413765, 1060693245, 1343544777, 2239241295, 4030634331, 6717723885, 20153171655]

約数ペア:

[(1, 20153171655), (3, 6717723885), (5, 4030634331), (9, 2239241295), (15, 1343544777), (19, 1060693245), (27, 746413765), (37, 544680315), (45, 447848259), (57, 353564415), (95, 212138649), (111, 181560105), (131, 153841005), (135, 149282753), (171, 117854805), (185, 108936063), (285, 70712883), (333, 60520035), (393, 51280335), (513, 39284935), (555, 36312021), (655, 30768201), (703, 28667385), (855, 23570961), (999, 20173345), (1179, 17093445), (1621, 12432555), (1665, 12104007), (1965, 10256067), (2109, 9555795), (2489, 8096895), (2565, 7856987), (3515, 5733477), (3537, 5697815), (4847, 4157865), (4863, 4144185), (4995, 4034669), (5895, 3418689), (6327, 3185265), (7467, 2698965), (8105, 2486511), (10545, 1911159), (12445, 1619379), (14541, 1385955), (14589, 1381395), (17685, 1139563), (18981, 1061755), (22401, 899655), (24235, 831573), (24315, 828837), (30799, 654345), (31635, 637053), (37335, 539793), (43623, 461985), (43767, 460465), (59977, 336015), (67203, 299885), (72705, 277191), (72945, 276279), (92093, 218835), (92397, 218115), (94905, 212351), (112005, 179931), (130869, 153995)]