280505120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{250451}}^1$

素因数の和:250473

約数の個数: 48

約数和(自身を含む): 757366848

約数和(自身を除く): 476861728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 250451, 500902, 1001804, 1252255, 1753157, 2003608, 2504510, 3506314, 4007216, 5009020, 7012628, 8014432, 8765785, 10018040, 14025256, 17531570, 20036080, 28050512, 35063140, 40072160, 56101024, 70126280, 140252560, 280505120]

約数ペア:

[(1, 280505120), (2, 140252560), (4, 70126280), (5, 56101024), (7, 40072160), (8, 35063140), (10, 28050512), (14, 20036080), (16, 17531570), (20, 14025256), (28, 10018040), (32, 8765785), (35, 8014432), (40, 7012628), (56, 5009020), (70, 4007216), (80, 3506314), (112, 2504510), (140, 2003608), (160, 1753157), (224, 1252255), (280, 1001804), (560, 500902), (1120, 250451)]