19280908486520

素因数分解:

$2^3\times 5^1\times {\mathrm{138371}}^1\times {\mathrm{3483553}}^1$

素因数の和:3621935

約数の個数: 32

約数和(自身を含む): 43382370067920

約数和(自身を除く): 24101461581400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 138371, 276742, 553484, 691855, 1106968, 1383710, 2767420, 3483553, 5534840, 6967106, 13934212, 17417765, 27868424, 34835530, 69671060, 139342120, 482022712163, 964045424326, 1928090848652, 2410113560815, 3856181697304, 4820227121630, 9640454243260, 19280908486520]

約数ペア:

[(1, 19280908486520), (2, 9640454243260), (4, 4820227121630), (5, 3856181697304), (8, 2410113560815), (10, 1928090848652), (20, 964045424326), (40, 482022712163), (138371, 139342120), (276742, 69671060), (553484, 34835530), (691855, 27868424), (1106968, 17417765), (1383710, 13934212), (2767420, 6967106), (3483553, 5534840)]