28535740

素因数分解:

$2^2\times 5^1\times {\mathrm{683}}^1\times {\mathrm{2089}}^1$

素因数の和:2781

約数の個数: 24

約数和(自身を含む): 60041520

約数和(自身を除く): 31505780

約数列:

[1, 2, 4, 5, 10, 20, 683, 1366, 2089, 2732, 3415, 4178, 6830, 8356, 10445, 13660, 20890, 41780, 1426787, 2853574, 5707148, 7133935, 14267870, 28535740]

約数ペア:

[(1, 28535740), (2, 14267870), (4, 7133935), (5, 5707148), (10, 2853574), (20, 1426787), (683, 41780), (1366, 20890), (2089, 13660), (2732, 10445), (3415, 8356), (4178, 6830)]