20778812355

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{2801}}^1\times {\mathrm{10093}}^1$

素因数の和:12916

約数の個数: 48

約数和(自身を含む): 38691674784

約数和(自身を除く): 17912862429

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 2801, 8403, 10093, 14005, 19607, 30279, 42015, 50465, 58821, 70651, 98035, 137249, 151395, 211953, 294105, 353255, 411747, 494557, 686245, 1059765, 1483671, 2058735, 2472785, 7418355, 28270493, 84811479, 141352465, 197893451, 424057395, 593680353, 989467255, 1385254157, 2968401765, 4155762471, 6926270785, 20778812355]

約数ペア:

[(1, 20778812355), (3, 6926270785), (5, 4155762471), (7, 2968401765), (15, 1385254157), (21, 989467255), (35, 593680353), (49, 424057395), (105, 197893451), (147, 141352465), (245, 84811479), (735, 28270493), (2801, 7418355), (8403, 2472785), (10093, 2058735), (14005, 1483671), (19607, 1059765), (30279, 686245), (42015, 494557), (50465, 411747), (58821, 353255), (70651, 294105), (98035, 211953), (137249, 151395)]