18286820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 40748400

約数和(自身を除く): 22461580

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 116, 145, 164, 205, 290, 410, 580, 769, 820, 1189, 1538, 2378, 3076, 3845, 4756, 5945, 7690, 11890, 15380, 22301, 23780, 31529, 44602, 63058, 89204, 111505, 126116, 157645, 223010, 315290, 446020, 630580, 914341, 1828682, 3657364, 4571705, 9143410, 18286820]

約数ペア:

[(1, 18286820), (2, 9143410), (4, 4571705), (5, 3657364), (10, 1828682), (20, 914341), (29, 630580), (41, 446020), (58, 315290), (82, 223010), (116, 157645), (145, 126116), (164, 111505), (205, 89204), (290, 63058), (410, 44602), (580, 31529), (769, 23780), (820, 22301), (1189, 15380), (1538, 11890), (2378, 7690), (3076, 5945), (3845, 4756)]