820400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{293}}^1$

素因数の和:318

約数の個数: 60

約数和(自身を含む): 2260272

約数和(自身を除く): 1439872

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, 293, 350, 400, 560, 586, 700, 1172, 1400, 1465, 2051, 2344, 2800, 2930, 4102, 4688, 5860, 7325, 8204, 10255, 11720, 14650, 16408, 20510, 23440, 29300, 32816, 41020, 51275, 58600, 82040, 102550, 117200, 164080, 205100, 410200, 820400]

約数ペア:

[(1, 820400), (2, 410200), (4, 205100), (5, 164080), (7, 117200), (8, 102550), (10, 82040), (14, 58600), (16, 51275), (20, 41020), (25, 32816), (28, 29300), (35, 23440), (40, 20510), (50, 16408), (56, 14650), (70, 11720), (80, 10255), (100, 8204), (112, 7325), (140, 5860), (175, 4688), (200, 4102), (280, 2930), (293, 2800), (350, 2344), (400, 2051), (560, 1465), (586, 1400), (700, 1172)]