478940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 1257984

約数和(自身を除く): 779044

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 311, 385, 622, 770, 1244, 1540, 1555, 2177, 3110, 3421, 4354, 6220, 6842, 8708, 10885, 13684, 17105, 21770, 23947, 34210, 43540, 47894, 68420, 95788, 119735, 239470, 478940]

約数ペア:

[(1, 478940), (2, 239470), (4, 119735), (5, 95788), (7, 68420), (10, 47894), (11, 43540), (14, 34210), (20, 23947), (22, 21770), (28, 17105), (35, 13684), (44, 10885), (55, 8708), (70, 6842), (77, 6220), (110, 4354), (140, 3421), (154, 3110), (220, 2177), (308, 1555), (311, 1540), (385, 1244), (622, 770)]