28515740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{571}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 65729664

約数和(自身を除く): 37213924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 227, 454, 571, 908, 1135, 1142, 2270, 2284, 2497, 2855, 4540, 4994, 5710, 6281, 9988, 11420, 12485, 12562, 24970, 25124, 31405, 49940, 62810, 125620, 129617, 259234, 518468, 648085, 1296170, 1425787, 2592340, 2851574, 5703148, 7128935, 14257870, 28515740]

約数ペア:

[(1, 28515740), (2, 14257870), (4, 7128935), (5, 5703148), (10, 2851574), (11, 2592340), (20, 1425787), (22, 1296170), (44, 648085), (55, 518468), (110, 259234), (220, 129617), (227, 125620), (454, 62810), (571, 49940), (908, 31405), (1135, 25124), (1142, 24970), (2270, 12562), (2284, 12485), (2497, 11420), (2855, 9988), (4540, 6281), (4994, 5710)]