620615525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{21419}}^1$

素因数の和:21509

約数の個数: 24

約数和(自身を含む): 823384800

約数和(自身を除く): 202769275

約数列:

[1, 5, 19, 25, 61, 95, 305, 475, 1159, 1525, 5795, 21419, 28975, 107095, 406961, 535475, 1306559, 2034805, 6532795, 10174025, 24824621, 32663975, 124123105, 620615525]

約数ペア:

[(1, 620615525), (5, 124123105), (19, 32663975), (25, 24824621), (61, 10174025), (95, 6532795), (305, 2034805), (475, 1306559), (1159, 535475), (1525, 406961), (5795, 107095), (21419, 28975)]