8312980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31973}}^1$

素因数の和:31995

約数の個数: 24

約数和(自身を含む): 18800712

約数和(自身を除く): 10487732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31973, 63946, 127892, 159865, 319730, 415649, 639460, 831298, 1662596, 2078245, 4156490, 8312980]

約数ペア:

[(1, 8312980), (2, 4156490), (4, 2078245), (5, 1662596), (10, 831298), (13, 639460), (20, 415649), (26, 319730), (52, 159865), (65, 127892), (130, 63946), (260, 31973)]