11781580

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{919}}^1$

素因数の和:1569

約数の個数: 24

約数和(自身を含む): 24806880

約数和(自身を除く): 13025300

約数列:

[1, 2, 4, 5, 10, 20, 641, 919, 1282, 1838, 2564, 3205, 3676, 4595, 6410, 9190, 12820, 18380, 589079, 1178158, 2356316, 2945395, 5890790, 11781580]

約数ペア:

[(1, 11781580), (2, 5890790), (4, 2945395), (5, 2356316), (10, 1178158), (20, 589079), (641, 18380), (919, 12820), (1282, 9190), (1838, 6410), (2564, 4595), (3205, 3676)]