1949778885

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{131431}}^1$

素因数の和:131505

約数の個数: 32

約数和(自身を含む): 3331012608

約数和(自身を除く): 1381233723

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 2967, 4945, 14835, 131431, 394293, 657155, 1971465, 3022913, 5651533, 9068739, 15114565, 16954599, 28257665, 45343695, 84772995, 129985259, 389955777, 649926295, 1949778885]

約数ペア:

[(1, 1949778885), (3, 649926295), (5, 389955777), (15, 129985259), (23, 84772995), (43, 45343695), (69, 28257665), (115, 16954599), (129, 15114565), (215, 9068739), (345, 5651533), (645, 3022913), (989, 1971465), (2967, 657155), (4945, 394293), (14835, 131431)]