28205121010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{256410191}}^1$

素因数の和:256410209

約数の個数: 16

約数和(自身を含む): 55384601472

約数和(自身を除く): 27179480462

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 256410191, 512820382, 1282050955, 2564101910, 2820512101, 5641024202, 14102560505, 28205121010]

約数ペア:

[(1, 28205121010), (2, 14102560505), (5, 5641024202), (10, 2820512101), (11, 2564101910), (22, 1282050955), (55, 512820382), (110, 256410191)]