28264940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128477}}^1$

素因数の和:128497

約数の個数: 24

約数和(自身を含む): 64752912

約数和(自身を除く): 36487972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128477, 256954, 513908, 642385, 1284770, 1413247, 2569540, 2826494, 5652988, 7066235, 14132470, 28264940]

約数ペア:

[(1, 28264940), (2, 14132470), (4, 7066235), (5, 5652988), (10, 2826494), (11, 2569540), (20, 1413247), (22, 1284770), (44, 642385), (55, 513908), (110, 256954), (220, 128477)]