16686380

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 19601620

約数列:

[1, 2, 4, 5, 10, 20, 59, 79, 118, 158, 179, 236, 295, 316, 358, 395, 590, 716, 790, 895, 1180, 1580, 1790, 3580, 4661, 9322, 10561, 14141, 18644, 21122, 23305, 28282, 42244, 46610, 52805, 56564, 70705, 93220, 105610, 141410, 211220, 282820, 834319, 1668638, 3337276, 4171595, 8343190, 16686380]

約数ペア:

[(1, 16686380), (2, 8343190), (4, 4171595), (5, 3337276), (10, 1668638), (20, 834319), (59, 282820), (79, 211220), (118, 141410), (158, 105610), (179, 93220), (236, 70705), (295, 56564), (316, 52805), (358, 46610), (395, 42244), (590, 28282), (716, 23305), (790, 21122), (895, 18644), (1180, 14141), (1580, 10561), (1790, 9322), (3580, 4661)]