20729450020

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1\times {\mathrm{22469}}^1$

素因数の和:22924

約数の個数: 48

約数和(自身を含む): 43955634240

約数和(自身を除く): 23226184220

約数列:

[1, 2, 4, 5, 10, 20, 163, 283, 326, 566, 652, 815, 1132, 1415, 1630, 2830, 3260, 5660, 22469, 44938, 46129, 89876, 92258, 112345, 184516, 224690, 230645, 449380, 461290, 922580, 3662447, 6358727, 7324894, 12717454, 14649788, 18312235, 25434908, 31793635, 36624470, 63587270, 73248940, 127174540, 1036472501, 2072945002, 4145890004, 5182362505, 10364725010, 20729450020]

約数ペア:

[(1, 20729450020), (2, 10364725010), (4, 5182362505), (5, 4145890004), (10, 2072945002), (20, 1036472501), (163, 127174540), (283, 73248940), (326, 63587270), (566, 36624470), (652, 31793635), (815, 25434908), (1132, 18312235), (1415, 14649788), (1630, 12717454), (2830, 7324894), (3260, 6358727), (5660, 3662447), (22469, 922580), (44938, 461290), (46129, 449380), (89876, 230645), (92258, 224690), (112345, 184516)]