4400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1$

素因数の和:29

約数の個数: 30

約数和(自身を含む): 11532

約数和(自身を除く): 7132

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4400]

約数ペア:

[(1, 4400), (2, 2200), (4, 1100), (5, 880), (8, 550), (10, 440), (11, 400), (16, 275), (20, 220), (22, 200), (25, 176), (40, 110), (44, 100), (50, 88), (55, 80)]