20475702925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1\times {\mathrm{1499}}^1$

素因数の和:1870

約数の個数: 48

約数和(自身を含む): 27063000000

約数和(自身を除く): 6587297075

約数列:

[1, 5, 19, 25, 95, 149, 193, 475, 745, 965, 1499, 2831, 3667, 3725, 4825, 7495, 14155, 18335, 28481, 28757, 37475, 70775, 91675, 142405, 143785, 223351, 289307, 546383, 712025, 718925, 1116755, 1446535, 2731915, 4243669, 5496833, 5583775, 7232675, 13659575, 21218345, 27484165, 43106743, 106091725, 137420825, 215533715, 819028117, 1077668575, 4095140585, 20475702925]

約数ペア:

[(1, 20475702925), (5, 4095140585), (19, 1077668575), (25, 819028117), (95, 215533715), (149, 137420825), (193, 106091725), (475, 43106743), (745, 27484165), (965, 21218345), (1499, 13659575), (2831, 7232675), (3667, 5583775), (3725, 5496833), (4825, 4243669), (7495, 2731915), (14155, 1446535), (18335, 1116755), (28481, 718925), (28757, 712025), (37475, 546383), (70775, 289307), (91675, 223351), (142405, 143785)]