74761780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{433}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 160770960

約数和(自身を除く): 86009180

約数列:

[1, 2, 4, 5, 10, 20, 89, 97, 178, 194, 356, 388, 433, 445, 485, 866, 890, 970, 1732, 1780, 1940, 2165, 4330, 8633, 8660, 17266, 34532, 38537, 42001, 43165, 77074, 84002, 86330, 154148, 168004, 172660, 192685, 210005, 385370, 420010, 770740, 840020, 3738089, 7476178, 14952356, 18690445, 37380890, 74761780]

約数ペア:

[(1, 74761780), (2, 37380890), (4, 18690445), (5, 14952356), (10, 7476178), (20, 3738089), (89, 840020), (97, 770740), (178, 420010), (194, 385370), (356, 210005), (388, 192685), (433, 172660), (445, 168004), (485, 154148), (866, 86330), (890, 84002), (970, 77074), (1732, 43165), (1780, 42001), (1940, 38537), (2165, 34532), (4330, 17266), (8633, 8660)]