17979580

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2311}}^1$

素因数の和:2709

約数の個数: 24

約数和(自身を含む): 37870560

約数和(自身を除く): 19890980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 2311, 3890, 4622, 7780, 9244, 11555, 23110, 46220, 898979, 1797958, 3595916, 4494895, 8989790, 17979580]

約数ペア:

[(1, 17979580), (2, 8989790), (4, 4494895), (5, 3595916), (10, 1797958), (20, 898979), (389, 46220), (778, 23110), (1556, 11555), (1945, 9244), (2311, 7780), (3890, 4622)]