1218771880

素因数分解:

$2^3\times 5^1\times {\mathrm{727}}^1\times {\mathrm{41911}}^1$

素因数の和:42649

約数の個数: 32

約数和(自身を含む): 2746074240

約数和(自身を除く): 1527302360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 727, 1454, 2908, 3635, 5816, 7270, 14540, 29080, 41911, 83822, 167644, 209555, 335288, 419110, 838220, 1676440, 30469297, 60938594, 121877188, 152346485, 243754376, 304692970, 609385940, 1218771880]

約数ペア:

[(1, 1218771880), (2, 609385940), (4, 304692970), (5, 243754376), (8, 152346485), (10, 121877188), (20, 60938594), (40, 30469297), (727, 1676440), (1454, 838220), (2908, 419110), (3635, 335288), (5816, 209555), (7270, 167644), (14540, 83822), (29080, 41911)]