279468560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71293}}^1$

素因数の和:71320

約数の個数: 60

約数和(自身を含む): 755858988

約数和(自身を除く): 476390428

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 71293, 142586, 285172, 356465, 499051, 570344, 712930, 998102, 1140688, 1425860, 1996204, 2495255, 2851720, 3493357, 3992408, 4990510, 5703440, 6986714, 7984816, 9981020, 13973428, 17466785, 19962040, 27946856, 34933570, 39924080, 55893712, 69867140, 139734280, 279468560]

約数ペア:

[(1, 279468560), (2, 139734280), (4, 69867140), (5, 55893712), (7, 39924080), (8, 34933570), (10, 27946856), (14, 19962040), (16, 17466785), (20, 13973428), (28, 9981020), (35, 7984816), (40, 6986714), (49, 5703440), (56, 4990510), (70, 3992408), (80, 3493357), (98, 2851720), (112, 2495255), (140, 1996204), (196, 1425860), (245, 1140688), (280, 998102), (392, 712930), (490, 570344), (560, 499051), (784, 356465), (980, 285172), (1960, 142586), (3920, 71293)]