12780765

素因数分解:

$3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1487}}^1$

素因数の和:1689

約数の個数: 24

約数和(自身を含む): 22284288

約数和(自身を除く): 9503523

約数列:

[1, 3, 5, 9, 15, 45, 191, 573, 955, 1487, 1719, 2865, 4461, 7435, 8595, 13383, 22305, 66915, 284017, 852051, 1420085, 2556153, 4260255, 12780765]

約数ペア:

[(1, 12780765), (3, 4260255), (5, 2556153), (9, 1420085), (15, 852051), (45, 284017), (191, 66915), (573, 22305), (955, 13383), (1487, 8595), (1719, 7435), (2865, 4461)]