80723120

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6427}}^1$

素因数の和:6597

約数の個数: 40

約数和(自身を含む): 188906064

約数和(自身を除く): 108182944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 6427, 12560, 12854, 25708, 32135, 51416, 64270, 102832, 128540, 257080, 514160, 1009039, 2018078, 4036156, 5045195, 8072312, 10090390, 16144624, 20180780, 40361560, 80723120]

約数ペア:

[(1, 80723120), (2, 40361560), (4, 20180780), (5, 16144624), (8, 10090390), (10, 8072312), (16, 5045195), (20, 4036156), (40, 2018078), (80, 1009039), (157, 514160), (314, 257080), (628, 128540), (785, 102832), (1256, 64270), (1570, 51416), (2512, 32135), (3140, 25708), (6280, 12854), (6427, 12560)]