28204540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15497}}^1$

素因数の和:15526

約数の個数: 48

約数和(自身を含む): 72902592

約数和(自身を除く): 44698052

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15497, 30994, 61988, 77485, 108479, 154970, 201461, 216958, 309940, 402922, 433916, 542395, 805844, 1007305, 1084790, 1410227, 2014610, 2169580, 2820454, 4029220, 5640908, 7051135, 14102270, 28204540]

約数ペア:

[(1, 28204540), (2, 14102270), (4, 7051135), (5, 5640908), (7, 4029220), (10, 2820454), (13, 2169580), (14, 2014610), (20, 1410227), (26, 1084790), (28, 1007305), (35, 805844), (52, 542395), (65, 433916), (70, 402922), (91, 309940), (130, 216958), (140, 201461), (182, 154970), (260, 108479), (364, 77485), (455, 61988), (910, 30994), (1820, 15497)]