788892020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{77191}}^1$

素因数の和:77280

約数の個数: 48

約数和(自身を含む): 1919301888

約数和(自身を除く): 1130409868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 10220, 77191, 154382, 308764, 385955, 540337, 771910, 1080674, 1543820, 2161348, 2701685, 5403370, 5634943, 10806740, 11269886, 22539772, 28174715, 39444601, 56349430, 78889202, 112698860, 157778404, 197223005, 394446010, 788892020]

約数ペア:

[(1, 788892020), (2, 394446010), (4, 197223005), (5, 157778404), (7, 112698860), (10, 78889202), (14, 56349430), (20, 39444601), (28, 28174715), (35, 22539772), (70, 11269886), (73, 10806740), (140, 5634943), (146, 5403370), (292, 2701685), (365, 2161348), (511, 1543820), (730, 1080674), (1022, 771910), (1460, 540337), (2044, 385955), (2555, 308764), (5110, 154382), (10220, 77191)]