19522220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{347}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 42971040

約数和(自身を除く): 23448820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 116, 145, 194, 290, 347, 388, 485, 580, 694, 970, 1388, 1735, 1940, 2813, 3470, 5626, 6940, 10063, 11252, 14065, 20126, 28130, 33659, 40252, 50315, 56260, 67318, 100630, 134636, 168295, 201260, 336590, 673180, 976111, 1952222, 3904444, 4880555, 9761110, 19522220]

約数ペア:

[(1, 19522220), (2, 9761110), (4, 4880555), (5, 3904444), (10, 1952222), (20, 976111), (29, 673180), (58, 336590), (97, 201260), (116, 168295), (145, 134636), (194, 100630), (290, 67318), (347, 56260), (388, 50315), (485, 40252), (580, 33659), (694, 28130), (970, 20126), (1388, 14065), (1735, 11252), (1940, 10063), (2813, 6940), (3470, 5626)]