80455040

素因数分解:

$2^7\times 5^1\times {\mathrm{125711}}^1$

素因数の和:125730

約数の個数: 32

約数和(自身を含む): 192339360

約数和(自身を除く): 111884320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 125711, 251422, 502844, 628555, 1005688, 1257110, 2011376, 2514220, 4022752, 5028440, 8045504, 10056880, 16091008, 20113760, 40227520, 80455040]

約数ペア:

[(1, 80455040), (2, 40227520), (4, 20113760), (5, 16091008), (8, 10056880), (10, 8045504), (16, 5028440), (20, 4022752), (32, 2514220), (40, 2011376), (64, 1257110), (80, 1005688), (128, 628555), (160, 502844), (320, 251422), (640, 125711)]