20783419790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1\times {\mathrm{2861}}^1$

素因数の和:3693

約数の個数: 64

約数和(自身を含む): 43106940288

約数和(自身を除く): 22323520498

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 661, 785, 1099, 1322, 1570, 2198, 2861, 3305, 4627, 5495, 5722, 6610, 9254, 10990, 14305, 20027, 23135, 28610, 40054, 46270, 100135, 103777, 200270, 207554, 449177, 518885, 726439, 898354, 1037770, 1452878, 1891121, 2245885, 3144239, 3632195, 3782242, 4491770, 6288478, 7264390, 9455605, 13237847, 15721195, 18911210, 26475694, 31442390, 66189235, 132378470, 296905997, 593811994, 1484529985, 2078341979, 2969059970, 4156683958, 10391709895, 20783419790]

約数ペア:

[(1, 20783419790), (2, 10391709895), (5, 4156683958), (7, 2969059970), (10, 2078341979), (14, 1484529985), (35, 593811994), (70, 296905997), (157, 132378470), (314, 66189235), (661, 31442390), (785, 26475694), (1099, 18911210), (1322, 15721195), (1570, 13237847), (2198, 9455605), (2861, 7264390), (3305, 6288478), (4627, 4491770), (5495, 3782242), (5722, 3632195), (6610, 3144239), (9254, 2245885), (10990, 1891121), (14305, 1452878), (20027, 1037770), (23135, 898354), (28610, 726439), (40054, 518885), (46270, 449177), (100135, 207554), (103777, 200270)]