285880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1021}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 735840

約数和(自身を除く): 449960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1021, 2042, 4084, 5105, 7147, 8168, 10210, 14294, 20420, 28588, 35735, 40840, 57176, 71470, 142940, 285880]

約数ペア:

[(1, 285880), (2, 142940), (4, 71470), (5, 57176), (7, 40840), (8, 35735), (10, 28588), (14, 20420), (20, 14294), (28, 10210), (35, 8168), (40, 7147), (56, 5105), (70, 4084), (140, 2042), (280, 1021)]