4451560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1021}}^1$

素因数の和:1141

約数の個数: 32

約数和(自身を含む): 10117800

約数和(自身を除く): 5666240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1021, 1090, 2042, 2180, 4084, 4360, 5105, 8168, 10210, 20420, 40840, 111289, 222578, 445156, 556445, 890312, 1112890, 2225780, 4451560]

約数ペア:

[(1, 4451560), (2, 2225780), (4, 1112890), (5, 890312), (8, 556445), (10, 445156), (20, 222578), (40, 111289), (109, 40840), (218, 20420), (436, 10210), (545, 8168), (872, 5105), (1021, 4360), (1090, 4084), (2042, 2180)]