25129940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1109}}^1$

素因数の和:1232

約数の個数: 48

約数和(自身を含む): 58181760

約数和(自身を除く): 33051820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1109, 1133, 2060, 2218, 2266, 4436, 4532, 5545, 5665, 11090, 11330, 12199, 22180, 22660, 24398, 48796, 60995, 114227, 121990, 228454, 243980, 456908, 571135, 1142270, 1256497, 2284540, 2512994, 5025988, 6282485, 12564970, 25129940]

約数ペア:

[(1, 25129940), (2, 12564970), (4, 6282485), (5, 5025988), (10, 2512994), (11, 2284540), (20, 1256497), (22, 1142270), (44, 571135), (55, 456908), (103, 243980), (110, 228454), (206, 121990), (220, 114227), (412, 60995), (515, 48796), (1030, 24398), (1109, 22660), (1133, 22180), (2060, 12199), (2218, 11330), (2266, 11090), (4436, 5665), (4532, 5545)]