772245

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^2$

素因数の和:273

約数の個数: 18

約数和(自身を含む): 1348854

約数和(自身を除く): 576609

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 5895, 17161, 51483, 85805, 154449, 257415, 772245]

約数ペア:

[(1, 772245), (3, 257415), (5, 154449), (9, 85805), (15, 51483), (45, 17161), (131, 5895), (393, 1965), (655, 1179)]