20862800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{7451}}^1$

素因数の和:7476

約数の個数: 60

約数和(自身を含む): 57290976

約数和(自身を除く): 36428176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 7451, 14902, 29804, 37255, 52157, 59608, 74510, 104314, 119216, 149020, 186275, 208628, 260785, 298040, 372550, 417256, 521570, 596080, 745100, 834512, 1043140, 1303925, 1490200, 2086280, 2607850, 2980400, 4172560, 5215700, 10431400, 20862800]

約数ペア:

[(1, 20862800), (2, 10431400), (4, 5215700), (5, 4172560), (7, 2980400), (8, 2607850), (10, 2086280), (14, 1490200), (16, 1303925), (20, 1043140), (25, 834512), (28, 745100), (35, 596080), (40, 521570), (50, 417256), (56, 372550), (70, 298040), (80, 260785), (100, 208628), (112, 186275), (140, 149020), (175, 119216), (200, 104314), (280, 74510), (350, 59608), (400, 52157), (560, 37255), (700, 29804), (1400, 14902), (2800, 7451)]