20339690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{373}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 45239040

約数和(自身を除く): 24899350

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 41, 70, 82, 95, 133, 190, 205, 266, 287, 373, 410, 574, 665, 746, 779, 1330, 1435, 1558, 1865, 2611, 2870, 3730, 3895, 5222, 5453, 7087, 7790, 10906, 13055, 14174, 15293, 26110, 27265, 30586, 35435, 49609, 54530, 70870, 76465, 99218, 107051, 152930, 214102, 248045, 290567, 496090, 535255, 581134, 1070510, 1452835, 2033969, 2905670, 4067938, 10169845, 20339690]

約数ペア:

[(1, 20339690), (2, 10169845), (5, 4067938), (7, 2905670), (10, 2033969), (14, 1452835), (19, 1070510), (35, 581134), (38, 535255), (41, 496090), (70, 290567), (82, 248045), (95, 214102), (133, 152930), (190, 107051), (205, 99218), (266, 76465), (287, 70870), (373, 54530), (410, 49609), (574, 35435), (665, 30586), (746, 27265), (779, 26110), (1330, 15293), (1435, 14174), (1558, 13055), (1865, 10906), (2611, 7790), (2870, 7087), (3730, 5453), (3895, 5222)]