6465940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1913}}^1$

素因数の和:1948

約数の個数: 36

約数和(自身を含む): 14711004

約数和(自身を除く): 8245064

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 1913, 3380, 3826, 7652, 9565, 19130, 24869, 38260, 49738, 99476, 124345, 248690, 323297, 497380, 646594, 1293188, 1616485, 3232970, 6465940]

約数ペア:

[(1, 6465940), (2, 3232970), (4, 1616485), (5, 1293188), (10, 646594), (13, 497380), (20, 323297), (26, 248690), (52, 124345), (65, 99476), (130, 49738), (169, 38260), (260, 24869), (338, 19130), (676, 9565), (845, 7652), (1690, 3826), (1913, 3380)]