20577076

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 41630400

約数和(自身を除く): 21053324

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 59, 76, 118, 236, 247, 353, 494, 706, 767, 988, 1121, 1412, 1534, 2242, 3068, 4484, 4589, 6707, 9178, 13414, 14573, 18356, 20827, 26828, 29146, 41654, 58292, 83308, 87191, 174382, 270751, 348764, 395713, 541502, 791426, 1083004, 1582852, 5144269, 10288538, 20577076]

約数ペア:

[(1, 20577076), (2, 10288538), (4, 5144269), (13, 1582852), (19, 1083004), (26, 791426), (38, 541502), (52, 395713), (59, 348764), (76, 270751), (118, 174382), (236, 87191), (247, 83308), (353, 58292), (494, 41654), (706, 29146), (767, 26828), (988, 20827), (1121, 18356), (1412, 14573), (1534, 13414), (2242, 9178), (3068, 6707), (4484, 4589)]