20138041820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2003}}^1\times {\mathrm{38669}}^1$

素因数の和:40694

約数の個数: 48

約数和(自身を含む): 45566871840

約数和(自身を除く): 25428830020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2003, 4006, 8012, 10015, 20030, 26039, 38669, 40060, 52078, 77338, 104156, 130195, 154676, 193345, 260390, 386690, 502697, 520780, 773380, 1005394, 2010788, 2513485, 5026970, 10053940, 77454007, 154908014, 309816028, 387270035, 774540070, 1006902091, 1549080140, 2013804182, 4027608364, 5034510455, 10069020910, 20138041820]

約数ペア:

[(1, 20138041820), (2, 10069020910), (4, 5034510455), (5, 4027608364), (10, 2013804182), (13, 1549080140), (20, 1006902091), (26, 774540070), (52, 387270035), (65, 309816028), (130, 154908014), (260, 77454007), (2003, 10053940), (4006, 5026970), (8012, 2513485), (10015, 2010788), (20030, 1005394), (26039, 773380), (38669, 520780), (40060, 502697), (52078, 386690), (77338, 260390), (104156, 193345), (130195, 154676)]